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:To Ulva we came in the dark , and left it before noon the next day . Sentence 2:A very exact description therefore will not be expected .
Output:
therefore