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).

[Q]: NASAは、２０平方メートルのソーラーセイルの主な試験を完了し、宇宙推進力技術における「重要なマイルストーン」を祝った。
[A]: NASA has completed a major test of a 20-meter square solar sail, marking a "crucial milestone" in space propulsion technology.


[Q]: 減損課徴金は、債務担保証券（CDO）と同じく、サブプライム・カテゴリーよりわずかに良い信用プロフィールで貸し出されるサブプライム・ローンとアルト-Aローンで裏書きされるRBMS（抵当）投資を含む危険な投資の結果である。
[A]: The impairment charge is a result of risky investments, including RBMS (mortgage) investments backed by subprime loans and Alt-A loans, which are made to borrowers with a slightly better credit profile than those in the subprime category, as well as from collateral debt obligations (CDOs).


[Q]: 「列車のブレーキシステムの不具合により事故が発生した」と内務大臣JusufKalomperovicは述べた。
[A]:
"The accident occurred because of a failure of the train's braking system," said Interior Minister Jusuf Kalomperovic.