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: If there is no movement friction is zero. 
Sentence2: Movement causes the temperature of an object to increase.
[A]: movement


[Q]: Sentence1: Visible and invisible light is energy in the form of electromagnetic waves. 
Sentence2: Eyes are used for seeing animals by sensing electromagnetic waves.
[A]: electromagnetic


[Q]: Sentence1: a solution is formed by one substance being dissolved in another substance. 
Sentence2: A homogenous mixture is formed when one substance dissolves in another.
[A]:
dissolved