The rules that use the vocabulary item "two" are:
two
two hundred fifty
two hundred and fifty
two fifty
two thousand five hundred
two hundred and fifty thousand
two hundred fifty thousand
two <two_digits>
two
two
oh two
zero two
one two
two zero
two one
twenty two
two two
two three
two
two <two_digits>
two
two
two
two <two_digits>
lcac two five
lcac two four
lcac two three
two
two
two
two
two
two
two
two <two_digits>
two
two
two