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

Which of the following classes is the superclass of '"Water-spirits appearing like human beings are recognized by traces of water."'?

A. "Form and appearance of water-spirits."
B. "Water-spirits."
C. "Water-ghosts on land."
D. "Evil water spirit in disguise."

Answer: "Form and appearance of water-spirits."