Detailed Instructions: 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: カンタスは少なくとも14台のエンジンを交換し、そして、トレント900に対していくつかの改造がなされ、２つの別会社、ルフトハンザ航空とシンガポール航空によって使われている。
A:
Qantas has replaced at least 14 engines, and modifications have been made to Trent 900s used by two other companies, Lufthansa and Singapore Airlines.