TASK 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.
PROBLEM: Sentence 1:They determined that she had meant her birth father and the case was closed . Sentence 2:Then , in 2006 , school staff called DCF to report a large bruise on Nubia 's face that they suspected was child abuse .

SOLUTION: then

PROBLEM: Sentence 1:The fertility of their hybrid has given rise to speculation that the dromedary and the Bactrian camel should be merged into a single species with two varieties . Sentence 2:However , a 1994 analysis of the mitochondrial cytochrome b gene showed the species display 10.3 % divergence in their sequences .

SOLUTION: however

PROBLEM: Sentence 1:In Classical Chinese , pronouns were overtly inflected to mark case . Sentence 2:However , these overt case forms are no longer used ; most of the alternative pronouns are considered archaic in modern Mandarin Chinese .

SOLUTION:
however