Q: "Two girls in green shirts, and two in white shirts, are painting pictures." Does this mean that "The girls are standing at easels."?
A: it is not possible to tell

Q: "One of the band members playing his trombone." Does this mean that "A man is playing the clarinet."?
A: no

Q: "A businessman and a security guard are smiling and talking outside a glass building." Does this mean that "People are arguing outside."?
A: no

Q: "A team throws a teammate in the air." Does this mean that "A team throws a teammate in the air."?
A:
yes