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: Specialization decreases mortality 12,13 and increases survival. 
Sentence2: evolving different adaptations increases survival.
[A]: increases


[Q]: Sentence1: Bees feed on nectar and pollen. 
Sentence2: Plant reproduction often requires bees and nectar.
[A]: Bees


[Q]: Sentence1: Arthropods have a life cycle with sexual reproduction. 
Sentence2: Sexual reproduction mixes the genes up more than is possible with asexual reproduction.
[A]:
reproduction