In this task, you are given two sentences in the English language (Sentence 1 and Sentence 2). Your task is to identify the connecting word between the two sentences.

Sentence 1:Timpani heads are sized based on the size of the head , not the bowl . Sentence 2:For example , a 23 - inch ( 58 cm ) drum may require a 25 - inch ( 64 cm ) head .
for example