Q: "A disheveled man is playing an accordion, asking for tips in a suitcase, while sitting by the water." Does this mean that "a disheveled man plays an accordion with a suitcase open for tips in front of him after a boat passed by in the water near him."?
A: it is not possible to tell

Q: "Children are playing with baseball bats." Does this mean that "Kids are playing with baseball bats."?
A: yes

Q: "A longboarder catches himself before hitting the ground." Does this mean that "A longboarder has his dog with him."?
A: no

Q: "Two German shepherds playing with a stick." Does this mean that "The dogs are training."?
A:
it is not possible to tell