Questions about example sentences with, and the definition and usage of "Ufos"

A: The first sounds like a relatively more natural way to put it (though I’m not sure why it would be polite to convince someone about UFOs)

A: 意味は大体一緒だけれど、wrote onはよく学校のエッセイとかを書くときのフレーズです。
I wrote my essay on UFOs.
I wrote my thesis on water conservation.
I wrote my discertation on frakking.
"about"を使ってもよろしいんですが。
"on"を使うと、I wrote 〇〇 on (トピック). という形の方がよく見られます。

A: They are not the same for two reasons:

1. UFO is "U"nidentified "F"lying "O"bject. So an unidentified which are flying object would be a UWAFO.

2. The modifier "which are flying" would go at the end of the sentence in natural English. So if you did write it that way, it would be "unidentified objects which are flying."

Since UFO are the initials of Unidentified Flying Object, people would think you were explaining what a UFO is if you said "How can we explain UFOs-- unidentified flying objects?" If you said "How can we explain UFOs-- unidentified objects which are flying," they would think you were making a joke.

A: It should be, "I was interested in what he was saying about UFOs."