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:which can be viewed as a version of the Pythagorean theorem . Sentence 2:Similarly , the angle that a line makes with the horizontal can be defined by the formula

Ex Output:
similarly

Ex Input:
Sentence 1:on the last day of the season , a loss that ended hopes of lasting the whole season undefeated at home . Sentence 2:Yet , it was the club 's highest finished since 2003 and promised much for the future .

Ex Output:
yet

Ex Input:
Sentence 1:Archeops flew for the first time in Trapani ( Sicily ) with four -- hours integration time . Sentence 2:Then , the upgraded instrument was launched three times from the Esrange base near Kiruna ( Sweden ) by the CNES during 2 consecutive Winter seasons ( 2001 and 2002 ) .

Ex Output:
then