setting,tone,example_sentence
"Personal chat",casual,"Quick note that this is my referral, so I may get something if you join."
"Blog article",neutral,"This article contains a referral code, and the author may benefit when it is used."
"Video description",friendly,"Heads up that the code below is my personal referral."
"Forum reply to a direct question",plain,"Since you asked, here is my referral, and yes I benefit a little from it."