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: People can learn hands .

SOLUTION: People can adjust hands .

PROBLEM: You are likely to play an apple tree around in a forest .

SOLUTION: You are likely to find an apple tree around in a forest.

PROBLEM: You can use a family room to jazz piano .

SOLUTION:
You can use a family room to display piano .