Cryptanalysis

No.14334078 ViewReplyOriginalReport
Can a /sci/ bro help me out?

I have the following ciphertext in the image, here it is transcribed into English letters:

ABCDEFGHIJ
DFKCLHCMHB
NCMOPCOHQ
RGCRSKHT

A hint was that the 2 vowels are H=E and F=O (it could also be the other way around). I feel inclined to say that C=R, given that the most common letter to come after E is the letter R in the English language. R is also the 3rd most common letter in the English language.
Some potentially helpful links
>https://english.stackexchange.com/questions/110576/what-are-the-most-common-letters-used-in-pairs-after-others-in-the-english-alpha
>https://www3.nd.edu/~busiforc/handouts/cryptography/letterfrequencies.html
>https://quipqiup.com/