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: Water erosion has similar consequences as wind erosion. 
Sentence2: exposure to water can cause erosion.
[A]: Water


[Q]: Sentence1: Insects have 2 antennae. 
Sentence2: Insects have 2 appendages to detect sound.
[A]: 2


[Q]: Sentence1: Plants Plants are able to directly absorb energy from the sunlight, and store it in chemical bonds. 
Sentence2: Food consists of organic molecules that store energy from the sunlight.
[A]:
sunlight