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 snowball is used to defend oneself against an alert .
A chain is used to store oneself against an attack .

A child can smell a flower.
A child can smell a blood .

You can nail a style to right the edge of shoes .

You can program a mic to stand the edge of shoes .