Question: Mao Kun map is often seen as a surviving document from the expeditions of the mariner whose ships could stretch past what length?
Sentence (from "Polacca"): It had two or three single-pole masts, the three-masted vessels often with a lateen hoisted on the foremast (which was slanted forward to accommodate the large lateen yard) and a gaff or lateen on the mizzen mast.
Relevant evidence: No