2747
It was only around the middle of the 20th century that attention came to be drawn to these dance forms , and they were then gradually revived and re-established on the foundation of their traditional heritage .
 None
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 None