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:This is known as the sidereal month . Sentence 2:However , during one sidereal month , Earth has revolved part way around the Sun , making the average time between one new moon and the next longer than the sidereal month : it is approximately 29.5 days .
however

Sentence 1:Baloo and Bagheera undertake the task of educating Mowgli as he grows . Sentence 2:Meanwhile , Shere Khan plans to take revenge on the wolf pack by persuading the younger wolves to depose their leader Akela .
meanwhile

Sentence 1:After being fired by the Chicago Bears after the Bears poor 2009 season , Turner was hired as offensive coordinator by Stanford . Sentence 2:However , four weeks later he became wide receivers coach for the Indianapolis Colts .
however