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:The collector current does not remain constant with variation in temperature or power supply voltage . Sentence 2:Therefore , the operating point is unstable .
answer:
therefore


question:
Sentence 1:In early April , the rebels launched an assault towards Kinsabba . Sentence 2:However , after one hour of fighting , the attack on the Al - Zuwayqat axis was repelled .
answer:
however


question:
Sentence 1:A table was then consulted to provide the exact measure . Sentence 2:However , this system was difficult to construct and used by few .
answer:

however