Analyze a long nested conditional in this order:
1. Find the connective governing the whole: an outer “if … then” or an outer “either … or.”
2. Separate the two complete components of that outer connective.
3. Classify each component as categorical, connected, or disjunctive.
4. Record antecedent/consequent order for a connected whole, but do not count a mere reversal of disjunctive alternatives as a new type.
“If this is a number, then it is even or odd” is externally connected with a categorical antecedent and a disjunctive consequent. We cannot infer this structure from sentence length or word-count.