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:Rather than full convertibility , it provided a fixed price for sales between central banks . Sentence 2:However , there was still an open gold market .
however

Sentence 1:First , the system voltage is raised up to 250 to 600 volts by a power supply inside the CDI module . Sentence 2:Then , the electric current flows to the charging circuit and charges the capacitor .
then

Sentence 1:It is debated amongst historians as to whether Mao 's motivations for launching the campaign were genuine or not . Sentence 2:In fact , it is possible that Mao actually originally had pure intentions , but later decided to utilize the opportunity to destroy criticism .

in fact