So far I've only learned how to use numbers in the context of counting e.g. このピザは 5枚ある (this pizza has five slices).
How do I express it in the following way:
This is a five-slice pizza
I would naively guess at "これは5枚のピザがある”, but I've not seen a counter used to modify a noun like that before.
Secondly, kind-of in the reverse direction how would I express the part in bold below:
(Please exit from) the front five coaches of this ten coach train
Hmm, I tried to construct this sentence but it just made me more sure that my guess for the first part of the question was wrong.