Question: What year was the children's book, written by the 1986 U.S. nominee for the biennial about a stranger with memory loss, released?
Sentence (from "Chris Van Allsburg"): He has won two Caldecott Medals for U.S. picture book illustration, for "Jumanji" (1981) and "The Polar Express" (1985), both of which he also wrote; both were later adapted as successful motion pictures.
Relevant evidence: No