Q: "A woman about to give a speech." Does this mean that "A woman is preparing to give a speech."?
A: it is not possible to tell

Q: "colorful people and a dog" Does this mean that "There are colorful individuals and an animal."?
A: yes

Q: "Three people biking on a path with grass on either side of the path." Does this mean that "The people are wearing helmets."?
A: it is not possible to tell

Q: "A dog racing around a track." Does this mean that "The dog is athletic."?
A:
it is not possible to tell