Generate an overlapping word between the given two sentences. When you find the overlapping words, they don't have to match exactly, e.g., "survival" and "survive" are valid overlapping words. Little words like "the" or "of" don't count! You must generate significant words which are not the stop words.

[Q]: Sentence1: an animal requires nutrients to grow and heal. 
Sentence2: Microbes can help an animal to grow and heal.
[A]: grow


[Q]: Sentence1: poisonous darts are used for defense by sea anemones. 
Sentence2: poisonous darts are used for protection by sea anemones.
[A]: anemones


[Q]: Sentence1: Fruits develop from the ovary of the flower. 
Sentence2: Female gametophytes produce eggs inside the fruit of flowers.
[A]:
Fruits