You will be given a definition of a task first, then some input of the task.
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:During these years , there were 700 permanent personnel stationed at the base . Sentence 2:However , by the mid-1950s only 120 Marines were stationed at Camp Matthews .
Output:
however