Given the task definition and input, reply with output. 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:Moreover , authors demonstrated that many genes are regulated by several independent active enhancers even in a single cell type . Sentence 2:Furthermore , gene expression levels on average were correlated with the sum of the enhancer strengths per gene , supporting direct link between gene expression and enhancer activity .
furthermore