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.

A coat of happiness does n't make us happier .
A lot of sleep doesn't make us happier.

You can use a theater seat to bring a play .
You can use a theater seat to participate a play .

You are likely to move a seat in a train .

You are likely to acquire a suitcase in a train .