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:Sources are also required when quoting someone , with or without quotation marks , or closely paraphrasing a source . Sentence 2:However , the citing of sources is not limited to those situations -- editors are always encouraged to add or improve citations for any information contained in an article .
Output:
however