78839
I encountered this sentence in an article from _NHK News web easy_ :

今まで国からお金をもらうためには、旅行した人が本当に利用したことがわかる書類などを「Go Toトラベル」の事務所に出さなければなりませんでした。

I cannot understand what 「 **本当に利用したことがわかる書類** 」means in this case. Ignoring
that part the remaining part of the sentence can be translated as: "Up until
now in order to get money from the government, people who have travelled, have
to send [ **missing part here** ] to the 「Go Toトラベル」office".

Now, I know that 利用する means "To use", and by inferring things, maybe, that
part can be roughly translated as " **the documents that do really certify
that they were on a trip** ", but I'm not sure and I cannot see how「
**本当に利用したことがわかる書類** 」carries that meaning.
CC BY-SA 4.0
2020-07-28T12:44:21.190
78838
2020-07-28T13:08:06.873
38625
question
grammar sentence
Use of「ことがわかる」in this sentence
You might be thinking of this meaning of わかる, which is the first meaning
you'll find in a monolingual dictionary.

> 物事の意味・価値などが理解できる  
>  To be able to understand the meaning, value, etc. of something

But the second definition is the one being used here.

> はっきりしなかった物事が明らかになる  
>  Something that was unclear becomes clear

So, 本当に利用したことがわかる書類 is "a document which makes it clear that [the traveler]
really used [whatever it is they used]"

If you check the "regular" NHK News version of the article, it appears this
phrase was NHK News Easy's way of explaining the word 宿泊証明書.
CC BY-SA 4.0
2020-07-28T13:08:06.873
78839
2020-07-28T13:08:06.873
20479
78838
answer