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.

Ex Input:
Sentence 1:McGuffie chose Michigan over California , Notre Dame , Texas A&M , and USC . Sentence 2:However , when Rich Rodriguez took over as the head coach of Michigan , McGuffie had doubts about whether to stay , though in the end he remained committed to Michigan .

Ex Output:
however


Ex Input:
Sentence 1:I never thought that I would have to change that view . Sentence 2:But at last I saw that if I wished to do good to my nation , I would have to do it by wise thinking and not so much fighting .

Ex Output:
but


Ex Input:
Sentence 1:The mechanisms for infection , proliferation , and persistence of a virus in cells of the host are crucial for its survival . Sentence 2:For example , some diseases such as measles employ a strategy whereby it must spread to a series of hosts .

Ex Output:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
for example


