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: A knife can be packed as a wrench .

SOLUTION: A transformation can be constituted as a matrix .

PROBLEM: The effect of covering art is you want to exclude it .

SOLUTION: The importance of seeing art is you want to buy it .

PROBLEM: The boundaries of a magnetic field can be deformed by another elastic process .

SOLUTION:
The boundaries of a magnetic field can be deformed by another super man .