ADJ.
finished
VERB + NINETY-FIRST
appears
NINETY-FIRST + NOUN
page
PREP.
in, on
adj
The ordinal form of the number ninety-one, describing a person or thing in position number 91 of a sequence.
The answer appears on the ninety-first page of the book.
She finished ninety-first in the race.
noun
One of ninety-one equal parts of a whole.
A ninety-first of 1820 is 20.