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:Reliability depends not wholly on the developer but at times on the compatibility between a database and an OS version . Sentence 2:For example , the widely used MS Access database system had a compatibility issue when Windows XP machines were updated to a newer Windows OS .

Ex Output:
for example

Ex Input:
Sentence 1:However , these amounts are not extractable without mining of the host materials ( see Production and availability ) . Sentence 2:Thus , the availability of indium is fundamentally determined by the rate at which these ores are extracted , and not their absolute amount .

Ex Output:
thus

Ex Input:
Sentence 1:In the preseason with the Patriots he played guard . Sentence 2:However , in September 2010 , he was waived by the Patriots and was claimed by his hometown team of Tampa Bay , Florida , the Tampa Bay Buccaneers .

Ex Output:
however