Task: Instance Class Understanding (ontology: Arts_Media_Entertainment/Propp)

Which of the following classes does '"Guardian of spirit-land boundary."' belong to? Context: "Terminal motif F140.1"

A. "Naked tribe."
B. "Man can stand all day on one foot."
C. "Extraordinary dress (clothes, robe, etc.)"
D. "Bounds of the otherworld."

Answer: "Bounds of the otherworld."