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.

Input: Consider Input: Sentence1: wiring requires an electrical conductor. 
Sentence2: Gold is an excellent conductor of electricity.

Output: conductor


Input: Consider Input: Sentence1: Flowers produce seeds for reproduction. 
Sentence2: flowers require dispersal for reproduction.

Output: Flowers


Input: Consider Input: Sentence1: Petals are great for potpourri or for making rose petal jelly. 
Sentence2: Something great for potpourri attracts pollinators to the flower.


Output: potpourri