[
{
"description": "visibility of whole object is between 0 and 40%",
"token": "1",
"level": "v0-40"
},
{
"description": "visibility of whole object is between 40 and 60%",
"token": "2",
"level": "v40-60"
},
{
"description": "visibility of whole object is between 60 and 80%",
"token": "3",
"level": "v60-80"
},
{
"description": "visibility of whole object is between 80 and 100%",
"token": "4",
"level": "v80-100"
}
]