Q: "A boy in a dirty shirt is walking through knee-high ocean water." Does this mean that "The boy can swim."?
A: it is not possible to tell

Q: "A brown dog is digging in the dirt." Does this mean that "A dog is running in the grass."?
A: no

Q: "Four bikes line up the sidewalk as man stands next to a wall in front of a light green building." Does this mean that "The man is waiting on a taxi."?
A: it is not possible to tell

Q: "A man wearing with long hair is sewing a costume." Does this mean that "a costume maker is finishing sewing a costume"?
A:
yes