numbers indicate the position of an element within
a group of elements.
sandwich went to the
floor the second into the water.
The third had no clue.
man he said that he doesn't need anyone anymore.
today who asks me for some change.
Ordinal numbers are in accordance with the gender and
number with the noun to which they refer. They can be
used adjectivally (before a noun) as well as substantival
(as a noun).