The fact that firemen clean up the scene of a major motor vehicle accident, in which a sedan and a truck collided and are both smashed doesn't imply that they are doing the cleaning because its their truck that caused it.


Context: Firemen clean up the scene of a major motor vehicle accident, in which a sedan and a truck collided and are both smashed.
Hypothesis: The firemen are cleaning up the crash because its their truck that caused it.

Given this context, determine if the hypothesis is true (Yes, no, or unknown)?