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: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 .
for example