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.

The effect of walking around a pavement is getting sore muscles .
The effect of walking around a course is getting sore muscles .

A kitchen window is made from some kind of safety glass .
A train window is made from some kind of safety glass.

You are likely to find a mutant in a snakes bone .

You are likely to find a mouse in a snakes belly.