TASK DEFINITION: Given a sentence, generate a new sentence by performing small changes on the sentence. Here, make sure that the changes are semantically related and syntactically similar to the input. And the generated sentence should have high commonsense plausibility, that is to have reasonable probability of it being true.
PROBLEM: You are likely to find a cigarette in a cigarette pack.

SOLUTION: You are likely to find a stub in a cigarette pack .

PROBLEM: You are likely to find a football stash in an envelope .

SOLUTION: You are sorry to find a th parcel in an envelope .

PROBLEM: You are eligible to feed a large container in a house .

SOLUTION:
You are pleased to find a large container in a factory .