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: You are easy to find a bush in a forest .

SOLUTION: You are likely to find a mouse in a forest.

PROBLEM: You are likely to run a mother in a pack .

SOLUTION: You are likely to find a mother in a pharmacy .

PROBLEM: Without weather and water , most animals would die .

SOLUTION:
From food and water , most animals would die .