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.

[EX Q]: Sentence1: if a neutral atom loses an electron then an atom with a negative charge will be formed. 
Sentence2: Ice crystals that are formed have a negative charge.
[EX A]: charge

[EX Q]: Sentence1: Ovulation is the release of an egg from an ovary. 
Sentence2: The release of an egg during ovulation is used in reproduction.
[EX A]: Ovulation

[EX Q]: Sentence1: when the season changes , the amount of daylight will change. 
Sentence2: The flowering of soybeans is activated by the length of daylight hours.
[EX A]:
daylight