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.

Example Input: Sentence 1:There are a number of molecules known to inhibit this enzyme . Sentence 2:For example , cerulenin inhibits synthase II in Spinacia oleracea , Allium ampelprasum , Escherichia coli , and Streptoccoccus pneumonia .
Example Output: for example

Example Input: Sentence 1:A unique characteristic of Arasbaran forests is the ubiquity of edible wild trees . Sentence 2:For instance , a patch of forest between Aghaweye and Oskolou includes hazelnut trees .
Example Output: for instance

Example Input: Sentence 1:The protagonist of the story even sacrifices his girlfriend in order to beat the other company . Sentence 2:However , eventually he realizes the futility of sacrificing his personal life for the uncaring corporation , which regards him as only a disposable cog in a huge machine .
Example Output:
however