Definition: 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: Sentence1: Ground tissue fills the space between the dermal tissue and the vascular tissues. 
Sentence2: between the dermal tissue and the vascular tissues lies most of the interior of a plant.

vascular