The remaining mystery is whether some other person, group, or country funded and orchestrated the bombing.
It wasn't known  if another entity had taken a role in the bombing.
There was no question about the bombing being planned by an outside group.
a person wearing clothes is weaving
Who is the wide receiver on that team?
A police officer is riding his motorcycle on the road.
A group of people are together
The classroom does not have students in it
Julius opened it up and looked inside.