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.

Q: Sentence 1:Mentonasc is considered to be a transitional language ; it is an intermediate language between Occitan and Ligurian , which is why the classification of Mentonasc is often debated . Sentence 2:However , it is traditionally assigned to the Occitan language .

A: however
****
Q: Sentence 1:Various experiments of Vespula wasps have shown that absence of worker reproduction can most likely be attributed to worker policing . Sentence 2:However , V. acadica is one of the few exceptions to the Vespula level generalization regarding worker policing .

A: however
****
Q: Sentence 1:Originally intended to replace the OMO cars which were suffering from metal fatigue , ten were ordered . Sentence 2:However , due to cost cutting only seven were built for Blackpool Transport , with GEC 's 648 later joining the fleet .

A:
however
****