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.
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Question: Sentence 1:PrP has been detected in the blood of sick animals by means of PMCA technology . Sentence 2:However , repeated cycling over several days , which is necessary for PMCA of blood material , has been reported to result in decreased specificity ( false positives ) .

Answer: however

Question: Sentence 1:Content is free of charge for professionals and others . Sentence 2:but registration is required .

Answer: but

Question: Sentence 1:Nowadays production of brass ware has fallen off , due to high costs and the city has successfully transitioned to the manufacture of aluminium and stainless steel products . Sentence 2:Moreover , Jagadhri has also witnessed the growth of a new timber trade in the last decade .

Answer:
moreover