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: しかし、精神病によって、彼はただ一つのアルバム「夜明けの口笛吹き」をレコーディングしたあと、バンドを離れざるをえなかった。

SOLUTION: However, due to mental illness, he was forced to leave the band after recording only one album, The Piper at the Gates of Dawn.

PROBLEM: ヘッセンのあらゆる場所から集まった学生団体は、ギーセンで一緒にデモをしようと呼びかけた。

SOLUTION: Students unions from all parts of Hesse called for the joint demonstration in Gießen.

PROBLEM: 法廷で彼らの逮捕の原因であったヘロインがデンパサール空港で逮捕された他の４名の体に巻きつけられて見つかったものと同じであったと判明した。

SOLUTION:
The court found that the heroin they had been caught with was the same as that found strapped to the bodies of the four others arrested at Denpasar airport.