Q: "Two girls share a see-through umbrella" Does this mean that "Two teenage girls are sharing an umbrella."?
A: it is not possible to tell

Q: "A group of men in a yellow boat with their dogs." Does this mean that "Group of men in a boat with their dogs."?
A: yes

Q: "A young boy riding a dirt bike through the mud." Does this mean that "A young boy is having fun in the mud."?
A: it is not possible to tell

Q: "Three young men sing together while one plays the guitar." Does this mean that "Three young men singing."?
A:
yes