Detailed Instructions: 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.
Q: Sentence 1:The rotweiler tries to break back in using a log . Sentence 2:But upon doing so , the rotweiler overshoots and falls into a canyon which is on the other side of the house .
A:
but