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.

[Q]: Sentence 1:The second pre-production train was also tested on the Victoria line during engineering hours , and was expected to begin trial running in full passenger service in July 2008 . Sentence 2:However , this date slipped twice , first to January 2009 and then to July 2009 .
[A]: however


[Q]: Sentence 1:Therefore , from Nabataean perspective , Dhushara was probably associated with the heavens . Sentence 2:However one theory connect Dhushara with the forests that give different idea of the god .
[A]: however


[Q]: Sentence 1:The resolution is defined by the number of red , green , and blue subpixels , in groups of three , in an array in each axis . Sentence 2:As a result , each group of subpixels can render any colour on the screen , regardless of neighbouring pixels .
[A]:
as a result