TASK DEFINITION: In this task, you are given a sentence in the Japanese language and your task is to convert it into the English language. In translation, keep numbers as it is and make it sentence case (capitalize only the first word of each sentence and noun).
PROBLEM: １９６７年から１９６８年にかけて、シド・バレットはピンク・フロイドの主要なメンバーでありソングライターであるとみなされていた。

SOLUTION: During 1967-1968, Syd Barrett was considered to be the main member and songwriter of Pink Floyd.

PROBLEM: 衡陽市とチン州市の4万人の人は孤立していると伝えられた。

SOLUTION: 40,000 people in the cities of Hengyang and Chenzhou were reported stranded.

PROBLEM: この発見は脳のインシュリン信号を阻害するラットの遺伝子異常の研究によってなされた。

SOLUTION:
The finding was made by studying a genetic abnormality in rats that blocks insulin signaling in the brain.