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.

Example Input: You would testify to a doctor because you want a checkup .
Example Output: You would retreat to a doctor because you want a checkup .

Example Input: A island is a piece of land surrounded by water on all exits .
Example Output: A dome is a piece of arch surrounded by water on all streams .

Example Input: You are embarrassed to find an apple tree in a valley .
Example Output:
You are wild to find an apple tree in a valley .