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 Q]: Sentence 1:Madhavan had planned that man 's murder and he executes it . Sentence 2:But he not tried to escape from the punishment .
[EX A]: but

[EX Q]: Sentence 1:Because of the variable internal sequence , the motif can not be detected . Sentence 2:However , if we could use a program to search for motifs containing a variable sequence in the middle , without counting mutations , these motifs could be discovered .
[EX A]: however

[EX Q]: Sentence 1:In the original script and rough cut of the film , Hope Lange 's character Irene Sperry succeeds in her suicide attempt . Sentence 2:However , preview audiences reacted negatively to it and the scene was redone in which Irene survives and sees Glenn off to college .
[EX A]:
however