instruction:
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.
question:
Sentence 1:Various experiments of Vespula wasps have shown that absence of worker reproduction can most likely be attributed to worker policing . Sentence 2:However , V. acadica is one of the few exceptions to the Vespula level generalization regarding worker policing .
answer:
however

question:
Sentence 1:Before 1984 many mountineers and expeditions used to visit Kondus . Sentence 2:But after 1984 Pakistan Army founded their camps and it become prohibited for foriegner
answer:
but

question:
Sentence 1:To Ulva we came in the dark , and left it before noon the next day . Sentence 2:A very exact description therefore will not be expected .
answer:
therefore