Definition: 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: Sentence 1:Both peptides are known to specifically block the Kv3. 4 potassium channel , and thus bring about a decrease in blood pressure . Sentence 2:Moreover , they inhibit the cytopathic effects of mouse hepatitis virus strain MHV - A59 on mouse liver cells , by an unknown mechanism .
Output:
moreover