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: People with money can box for items for sale .

SOLUTION: People with money can ay for items for sale .

PROBLEM: Feeding your family requires money to extract food .

SOLUTION:
meaning your family requires money to buy food .