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:When exploring narrativity in film , several factors must be taken into account . Sentence 2:For example , the order in which the events of the story are presented .

Ex Output:
for example

Ex Input:
Sentence 1:Pastrana resigned and returned to Colombia and Samper rejected his own appointment . Sentence 2:But this move was not well received by the Conservative Party .

Ex Output:
but

Ex Input:
Sentence 1:In some species , such as rodents , the principle neurons in the LGN receive strong inputs from the retina . Sentence 2:However , the retina only accounts for a small percentage of LGN input in these cases .

Ex Output:
however