#act.dramatic_composition  a subdivision of a play or opera or ballet
  supertype:  dramatic_composition__dramatic_work  a play for performance on the stage or television or in a movie etc.
  part:  scene.dramatic_composition
  part of:  concert_dance__concertdance__ballet  a theatrical representation of a story performed to music by ballet dancers
  part of:  play__drama  a dramatic work intended for performance by actors on a stage; "he wrote several plays but only one was produced on Broadway"
  part of:  opera  a drama set to music; consists of singing with orchestral accompaniment and an orchestral overture and interludes

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