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:However , ganging CRPUs into three stages was sufficient to reach orbit . Sentence 2:Meanwhile , the low cost of each CRPU , after the economies of scale gained by producing hundreds or possibly thousands of them per year , would have still left the vehicle cheaper than its contemporaries .
meanwhile

Sentence 1:Bouchard won her first match on grass by defeating Alison Riske in the second round in Eastbourne . Sentence 2:However , she was forced to retire against eventual champion Belinda Bencic in round three with an abdominal injury .
however

Sentence 1:On September 25 , 2017 , Okafor signed with the Philadelphia 76ers . Sentence 2:However , he was waived on October 14 after appearing in five preseason games .

however