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:Fouling is ubiquitous and generates tremendous operational losses , not unlike corrosion . Sentence 2:For example , one estimate puts the losses due to fouling of heat exchangers in industrialized nations to be about 0.25 % of their GDP .
answer:
for example


question:
Sentence 1:Akane is able to extract the part , and she and Yukari earn the respect of the Atlantis crew . Sentence 2:But the Orpheus launches due to a testing fault , and ends up in a very deep orbit , unable to begin its mission .
answer:
but


question:
Sentence 1:No one knew that there was a Colahan sister and everyone 's interested in what this means , giving Greg many kudos . Sentence 2:However , Adrian Colahan wo n't talk about life growing up Colahan and throws Andy and Connie out of her apartment .
answer:

however