instruction:
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.
question:
Sentence1: waxy leaves are used for storing water by some plants. 
Sentence2: waxy leaves are used for water conservation by some plants.
answer:
leaves


question:
Sentence1: Bacteria and Viruses Bacteria and viruses can cause diseases. 
Sentence2: bacteria can have a negative impact on an organism.
answer:
Bacteria


question:
Sentence1: Exospores and endospores are produced by some members of the cyanobacteria. 
Sentence2: cyanobacteria are commonly found in soil and water.
answer:

cyanobacteria