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.

Sentence 1:since a larger value ( the energy released in the reaction ) is subtracted from a smaller value ( the energy used for the reaction ) . Sentence 2:For example , when hydrogen burns :
for example

Sentence 1:In 1168 there is the first indication of a free aristocratic ( edelfrei ) line in Berneck with the mention of the Walpote , Uodalrich II . Sentence 2:It can therefore be assumed that there was already a noble seat here at that time .
therefore

Sentence 1:On the final play of the game , Freeman threw a game - tying touchdown pass to Mike Williams in the back of the endzone as time expired . Sentence 2:However , the touchdown did not count because he stepped out of bounds before making the catch .

however