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.

Input: Consider Input: Sentence 1:The Opel vehicles sold in the 1960s and 1970s are exceptions to this rule because they were sold through the Buick distribution channel , while retaining the Opel brand name . Sentence 2:Thus , they are captive imports .

Output: thus


Input: Consider Input: Sentence 1:In later conflicts , the United States Army used black soldiers in the Spanish -- American War and in World War I . Sentence 2:However , when the United States Army Air Service was formed , only white people were allowed .

Output: however


Input: Consider Input: Sentence 1:Her family believed that her tooth was sore because of witchcraft , and she was ordered to go to bed . Sentence 2:However , when she fell asleep , she did not wake up .


Output: however