Q: "A group of runners standing in front of a red car in Europe." Does this mean that "A group of runners getting ready for a race."?
A: it is not possible to tell

Q: "a class holds up their certificates." Does this mean that "A class is holding up certificates."?
A: yes

Q: "Here is a crying baby being held by its grandmother." Does this mean that "The grandmother watches her grandson sleep in a crib."?
A: no

Q: "A singer and a guitar player playing together." Does this mean that "Two band members rock together."?
A:
it is not possible to tell