9507
They were also given a spot as one of five back-up features to be promoted in one of the earliest team-up books , " Leading Comics " , starting with issue # 1 ( Winter 1941 ) .
 media: Leading Comics
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 media: Leading Comics