reading 28 bluebox 5 - yen/euro swap

question says ‘identify all principal flows’

answer says ‘The following cash flows occur at the end of the life of the swap’

but there are swap and coupon cash flows on this same date… so it should say

‘The following principal cash flows occur at the end of the life of the swap’

I’m sure i would lose many points for this omission of one word?