Whenever only one (cardinal or ordinal) numeral differs from all others in its ordering relative to the noun, it will be that for the number 1.Whenever another numeral joins 1 in failing to conform to general ordering rules, it will be that for the number 2.
Standardized
IF only one (cardinal or ordinal) numeral differs from all others in its ordering relative to the noun, THEN it will be that for the number 1.IF another numeral joins 1 in failing to conform to general ordering rules, THEN it will be that for the number 2.