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: bacteria cause food to spoil. 
Sentence2: Food poisoning occurs when spoiled food is eaten.
answer:
spoil


question:
Sentence1: intense heat has a negative impact on an organism. 
Sentence2: intense heat has a negative impact on plants.
answer:
heat


question:
Sentence1: Hormone therapy Hormones are substances that occur naturally in the body. 
Sentence2: Substances in the pituitary control the endocrine glands.
answer:

substances