sentence: A woman is playing music on a stereo in a busy city. sentence:  Another woman is standing on the sidewalk with headphones. sentence:  They both smile at each other as they groove to the music. sentence:  The woman picks up the stereo and starts walking. sentence:  The other woman follows her on the same sidewalk. sentence:  They walk together holding the stereo. sentence:  A man in a red shirt starts dancing next to a car with another woman. sentence:  They join the woman walking with the stereo in her hand. sentence:  Several other people join them as they walk and dance to the music. sentence:  All the people break into a synchronized dance right on the street.