Assertion: modern dance | /r/HasProperty | developed in the united states
Facets:
Source sentences:
text: Modern Dance was developed in the 20th century, mainly in the United States and Germany.
text: Modern Dance was developed in the 20th century, mainly in the United States and Germany.
text: Developed in the 20th cent., primarily in the United States and Germany, modern dance resembles modern art and music in being experimental and iconoclastic.