88353
In 1972 , almost all episodes then made were known to exist at the BBC , while by 1978 the practice of wiping tapes and destroying " spare " film copies had been brought to a stop .
 organization: BBC
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: BBC 
Answer:
 organization: BBC