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.
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Question: Sentence1: Producers make food from inorganic molecules. 
Sentence2: Decomposition is the breakdown of organic molecules into inorganic molecules.

Answer: inorganic


Question: Sentence1: the ovaries are used in reproduction. 
Sentence2: Unlike most female animals, which have two functioning ovaries, the chicken usually has only one.

Answer: ovaries


Question: Sentence1: the color of leaves on deciduous trees usually changes in the autumn season. 
Sentence2: Deciduous trees are Oak, Elm, Ash, Maple, and Birch.

Answer:
deciduous