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.

Input: Consider Input: Sentence 1:In trace fossil nomenclature a Latin binomial name is used , just as in animal and plant taxonomy , with a genus and specific epithet . Sentence 2:However , the binomial names are not linked to an organism , but rather just a trace fossil .

Output: however

Input: Consider Input: Sentence 1:Lauren said that Andy 's happiness was her only concern . Sentence 2:Then , Gary called to inform Lauren that a new letter regarding Farren had arrived .

Output: then

Input: Consider Input: Sentence 1:Callan connected the beginning of the first coil to the beginning of the second . Sentence 2:Finally , he connected a battery , much smaller than the enormous contrivance just described , to the beginning and end of winding one .
Output: finally