12267
The Tunnel was a 90-minute black-and-white documentary film that chronicled how three West Berlin university student s organized the escape of 59 friends and family members by digging a tunnel underneath the Berlin Wall .
 None
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 None