In this task, you are given a sentence in the English language and your task is to convert it into the Japanese language. In translation, keep numbers as it is and make it sentence case (capitalize only the first word of each sentence and noun).
--------
Question: Approaching the speed of light would, however, require a long period of constant acceleration.

Answer: しかし、光の速度に近づくことは長期間の恒常的な加速を必要とする。


Question: The four paintings are worth a total of 163 million US dollars.

Answer: 4つの絵は、合計で1億6300万米ドルの価値がある。


Question: Officers have sealed off the scene, including a neighbouring street of shops.

Answer:
役人が、店の近隣の通りを含め、現場を封鎖した。