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.

Ex Input:
Sentence 1:A subsequent report focused on biosecurity , especially the so - called dual - use challenge . Sentence 2:For example , while synthetic biology may lead to more efficient production of medical treatments , it may also lead to synthesis or modification of harmful pathogens ( e.g. , smallpox ) .

Ex Output:
for example


Ex Input:
Sentence 1:The Titans got the lead back after kicker Rob Bironas made a 25 and a 32 - yard field goal . Sentence 2:However , the Redskins replied with Gano hitting a 40 - yard field goal .

Ex Output:
however


Ex Input:
Sentence 1:Your web browser also may have settings to block outside groups from seeing this . Sentence 2:Finally , try to keep your transactions secure .

Ex Output:

finally