Example: “Either if the sun rises, daylight exists; or the sun is rising or daylight is absent.”
First alternative: “If the sun rises, daylight exists” — connected.
Second alternative: “The sun is rising or daylight is absent” — disjunctive.
The outer form is a disjunction of a connected and a disjunctive conditional. The first side has an inner connection; the second has an inner separation.
The presence of both “if” and “or” in a passage is not enough for classification: determine the outermost connector first.