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: a pulley is used for lifting objects. 
Sentence2: Resistance exercises are weight-lifting exercises.
[EX A]: lifting

[EX Q]: Sentence1: Arthropods Arthropods have jointed segmented exoskeletons. 
Sentence2: Insects have jointed segmented exoskeletons.
[EX A]: exoskeletons

[EX Q]: Sentence1: Most modern gymnosperms are trees with woody trunks. 
Sentence2: Conifers are examples of gymnosperms.
[EX A]:
gymnosperms