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).

It was the earliest time on record that five named storms had formed in the Atlantic.
記録によると、これまでで最も早い時期に、大西洋上に5つの嵐が起こった。

The contract for the reactor was one of 20 signed by the two countries today, expected to result in around US$25 billion of Russian investment in Turkey.
原子炉の契約は、両国が今日署名した20の契約書のうちひとつであり、結果的にトルコでのロシアの投資は250億米ドル前後になると予想される。

Complex 40 was first used in 1965, for the maiden flight of the Titan IIIC rocket.

Complex40は1965年、タイタンIIICロケットの処女飛行で初めて使われた。