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:Two articles said he was born in 1939 ( 2 ) ( 3 ) . Sentence 2:However , Daum agrees with the 1940 birthdate ( 4 ) .

Ex Output:
however


Ex Input:
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 .

Ex Output:
however


Ex Input:
Sentence 1:Blue rectangles give general information while green rectangles are use for direction sign on main roads . Sentence 2:However , there are two exception for these shapes and colour rules ; that is the octagonal Stop sign and the inverted red triangle Give way sign .

Ex Output:

however