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.

[Q]: Sentence1: friction causes the temperature of an object to increase. 
Sentence2: pressure causes the temperature of an object to increase.
[A]: causes


[Q]: Sentence1: evaporation can be used for separating a solute from a solvent in a solution. 
Sentence2: Evaporation can be used for segregation a solute from a solvent in a solution.
[A]: a


[Q]: Sentence1: Bladder infections can be treated with antibiotics prescribed by a doctor. 
Sentence2: Bladder infections can be treated with antibiotics prescribed by some humans that make mistakes.
[A]:
Bladder