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:This is known as the sidereal month . Sentence 2:However , during one sidereal month , Earth has revolved part way around the Sun , making the average time between one new moon and the next longer than the sidereal month : it is approximately 29.5 days .

SOLUTION: however

PROBLEM: Sentence 1:The eunuchs in the Directorate of Ceremonial headed by Feng Bao brooked no weakening of their power by Gao . Sentence 2:Hence , an alignment among Zhang and Feng erected to marginalize Gao .

SOLUTION: hence

PROBLEM: Sentence 1:Combined with other immigrant groups like Puerto Ricans , these newcomers brought the city 's population back up to six figures . Sentence 2:However , this prosperity was short - lived .

SOLUTION:
however