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 nice to find a bank in a financial center .

SOLUTION: You are likely to find a bank in a financial establishment .

PROBLEM: You are likely to run a mother in a pack .

SOLUTION: You are likely to find a mother in a pharmacy .

PROBLEM: You are likely to find an animal in a pet store.

SOLUTION:
You are likely to find an accessory in a pet store .