6590
Introduced in mid-1988 , the 15 - centimeter - tall plastic turtles are based on an American comic book and television series .
 date: mid-1988; quantity: 15 - centimeter; national religious political: American
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: date, organization, person, geographical social political, national religious political, facility, cardinal, location, work of art, law, event, product, ordinal, percent, time, quantity, money, language 
Text: {0} 
Answer:
 date: mid-1988; quantity: 15 - centimeter; national religious political: American