sentence stringlengths 21 104 | target class label 12
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|---|---|
Pit vipers have <mask> holes, or pits, on their snouts. | 10two |
Pregnancy is broken down into <mask> phases, which are called trimesters. | 9three |
Butterflies go through <mask> life stages, and they look very different at each stage. | 2four |
Mutualism is <mask> organisms which are interdependent. | 10two |
Calves remain hidden for much of the time, and are weaned by <mask> months of age. | 9three |
Cytokinesis occurs producing <mask> haploid daughter cells. | 2four |
Houseflies are grey and black with <mask> black stripes on the back. | 2four |
Summer lasts for <mask> months of the year, and winter is only a dulling of the ever-present heat. | 3nine |
Children ages <mask> to three years are the most common victims of poisoning. | 5one |
Children ages one to <mask> years are the most common victims of poisoning. | 9three |
Trees require watering every three to <mask> weeks during a drought. | 2four |
Krill employ <mask> types of spawning mechanism. | 10two |
Muskrats eat aquatic vegetation and can stay under water for up to <mask> minutes. | 1five |
Polyploidy can occur in <mask> ways. | 10two |
Ground squirrels have a single litter a year that averages from four to <mask> young. | 3nine |
Immature scorpions molt an average of <mask> times before maturity. | 7six |
Volcanoes emit <mask> sorts of ozone-depleting compounds. | 10two |
Light chains exist in <mask> classes, lambda and kappa. | 10two |
Ovulation failure accounts for <mask> in five cases, as do blocked or diseased fallopian tubes. | 5one |
Myelinated axons can transmit nerve impulses up to <mask> times faster than unmyelinated axons. | 8ten |
Spatial complexity is varied in <mask> different ways. | 9three |
Taxonomists recognize up to <mask> species of burdock. | 0eight |
All insects have <mask> A. compound eyes. | 9three |
Tadpoles emerge about <mask> days after fertilization. | 2four |
Purines have <mask> ring structures. | 10two |
Some studies show that cloth diapering has <mask> times the burden on water supplies than disposables. | 2four |
Political parties have <mask> business in the media. | 4no |
Cosmetic coloration has <mask> different types. | 10two |
Species vary in size and appearance, with the largest having a leg span of about <mask> inches. | 3nine |
More evolution can produce <mask> distinct species. | 10two |
Diuretics produce virtually <mask> loss of calories, only loss of vital body fluids. | 4no |
Style is a string that contains <mask> or more of the characters n , s , e or w . | 11zero |
Lightning is <mask> times hotter than the surface of the sun. | 9three |
Winter squash is derived from all <mask> species and is eaten after the fruit has matured. | 2four |
Solids can exhibit <mask> different types of magnetic behavior depending on their atomic structure. | 1five |
Goats are ruminants, and like cattle, they have <mask> stomach compartments. | 2four |
Radioactive waste is deposited in <mask> concrete tanks within a fenced area. | 2four |
Dunlins have a mean life span of eight years for males and <mask> years for females. | 2four |
Female hummingbirds are born with <mask> ovaries. | 10two |
Proturans have small appendages ventral on the first <mask> abdominal segments. | 9three |
Armed carjackings are common in Nairobi, with some <mask> vehicles stolen by armed robbers each day. | 8ten |
Most suicidal adults visit a medical doctor during the <mask> months prior to killing themselves. | 9three |
Red meat is a good source of which <mask> nutrients. | 6seven |
Rainbow trout breed every <mask> to five years. | 9three |
Rainbow trout breed every three to <mask> years. | 1five |
Many Viennese houses have of <mask> or more staircases. | 10two |
Orange tortrix has <mask> to seven generations per year. | 2four |
Orange tortrix has four to <mask> generations per year. | 6seven |
Most children are able to speak fluently by <mask> to six years of age. | 1five |
Most children are able to speak fluently by five to <mask> years of age. | 7six |
Moles are about the size of chipmunks and can weigh anywhere from three to <mask> ounces. | 7six |
Smokers die from ruptured aneurysms <mask> times more often than nonsmokers. | 2four |
Trilobites have a segmented body that is divided by into <mask> vertical lobes. | 9three |
Misdemeanors have juries of <mask> persons, while felonies have twelve. | 7six |
Birds can nest in snags as small as <mask> inches in diameter. | 2four |
Western medicine uses <mask> approaches, drugs or surgery. | 10two |
Guns are the second leading cause of death of young people between the ages of <mask> and twenty-four. | 8ten |
Wine comes in a variety of flavors, but there are only <mask> basic types. | 9three |
Llamas have <mask> distinctive natural gaits. | 1five |
Snow is on the ground for close to <mask> months out of the year. | 6seven |
Fluorescent lamps are much more efficient than incandescent bulbs and last six to <mask> times longer. | 8ten |
Japanese spirea get to about <mask> feet tall and about as wide. | 1five |
Front feet have <mask> digits and their hind feet have five. | 2four |
Mistletoe plants are male or female with tiny yellow-green flowers with <mask> petals. | 2four |
Insects are very numerous and include <mask> species of the abundant and beautiful morpho butterflies. | 2four |
Flesh expresses itself and functions through <mask> primary appetites. | 9three |
Young cottontails are born blind with <mask> ears either. | 4no |
Sulphite oxidase is a homodimer, each monomer consisting of <mask> structural domains. | 9three |
Scientists believe that life first appeared on Earth nearly <mask> billion years ago. | 2four |
Nests Have at least <mask> nest for every three to four hens. | 5one |
Nests Have at least one nest for every three to <mask> hens. | 2four |
Ostriches have only <mask> toes on each foot. | 10two |
Catalytic lacquers come in <mask> varieties, pre and post. | 10two |
Water occurs naturally in <mask> forms that people see every day. | 9three |
Irregular galaxies have <mask> obvious spiral or elliptical structure. | 4no |
Shock resistance is about <mask> times that of sheet acrylic plastic, but less than for polycarbonate. | 2four |
Muscles have <mask> basic states. | 9three |
Nonverbal messages carry over <mask> times the weight of verbal messages. | 2four |
Sexual maturity is reached after two to <mask> years. | 1five |
Ostriches come in at least <mask> breeds. | 10two |
Convulsion begins at <mask> months of age. | 9three |
Carbon can have six, seven, or <mask> neutrons. | 0eight |
Most cats give birth to between <mask> and nine kittens. | 5one |
Most cats give birth to between one and <mask> kittens. | 3nine |
Vision tends to improve until it stabilises around the age of <mask> or six. | 1five |
Most school counselors work <mask> or ten months a year with time off during school vacations. | 3nine |
Mathematics have many abstractions including the <mask> postulates of Euclidean geometry. | 6seven |
Stress incontinence affects <mask> times as many Caucasian women as African-American women. | 9three |
Golf is played on gravel and baseball has <mask> bases. | 10two |
Cardiovascular disease kills <mask> times as many women each year. | 8ten |
Elves are the first of the <mask> families of fairy People. | 0eight |
Most newborns nurse every <mask> to three hours, even at night. | 5one |
Most newborns nurse every one to <mask> hours, even at night. | 9three |
Calves suckle for <mask> years then eat solid food. | 10two |
Cubs reach independence at approximately <mask> to three years old. | 10two |
Cubs reach independence at approximately two to <mask> years old. | 9three |
Perennial weeds are weeds that live more than <mask> years. | 10two |
Horseradish root Take <mask> capsules with meals three times daily. | 10two |
Love is <mask> minds without a single thought. | 10two |
Normal blood contains <mask> grams of sodium per pint. | 1five |
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