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: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 A]: but

[EX Q]: Sentence 1:The shapes and unusual spider appearance of these features have stimulated a variety of scientific hypotheses about their origin , ranging from differences in frosting reflectance , to explanations involving biological processes . Sentence 2:However , all current geophysical models assume some sort of geyser - like activity .
[EX A]: however

[EX Q]: Sentence 1:In the absence of standard methods , a range of system based around the use of web bugs have been developed . Sentence 2:However , these are often seen as underhand or raising privacy concerns , and only work with email clients that support rendering of HTML .
[EX A]:
however