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:The final version of the catalogue containing 103 objects was published in 1781 in the Connaissance des Temps for the year 1784 . Sentence 2:However , due to what was thought for a long time to be the incorrect addition of Messier 102 , the total number remained 102 .
Output:
however