Q: "A person hikes across a grass and snow covered plain" Does this mean that "A person hiking."?
A: yes

Q: "Veteran rocker is performing a tribute in the deadly hot sun." Does this mean that "Veteran musician rocking out in the bright sun."?
A: yes

Q: "A balding man in a blue blazer marks in a book at a desk in front of a chalkboard." Does this mean that "A man in a suit is teaching a class."?
A: it is not possible to tell

Q: "A woman wearing a bikini jumping up in the air playing beach volleyball." Does this mean that "The woman is winning the volleyball game"?
A:
it is not possible to tell