Q: "Competitors getting ready to compete in a grand opening event hosted by the chief executive" Does this mean that "There is a competition."?
A: yes

Q: "A professional basketball player in a Cleveland Cavaliers uniform is shooting a basket while a teammate guards him and two opponents wait for the rebound." Does this mean that "A few people are playing basketball."?
A: yes

Q: "A little girl playing on the beach building a sand castle." Does this mean that "A child is on the beach."?
A: yes

Q: "Three men, crosscountry skiing, in a field of snow." Does this mean that "Men are outside in the winter time."?
A:
yes