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: Moisture is required for the microorganisms to grow. 
Sentence2: Moisture can cause infections to grow.

Answer: Moisture


Question: Sentence1: Every photograph is produced by a camera. 
Sentence2: Photographers record images.

Answer: photograph


Question: Sentence1: Condensation of water vapor occurs during the chilling season. 
Sentence2: Beads of water are formed during the chilling season.

Answer:
chilling