In this task, you will be given two sentences separated by ", so". You should decide whether the first sentence can be the cause of the second sentence. If you can see a possible causation, answer with "plausible", otherwise answer with "not plausible".

Example Input: The motorcyclist twisted the throttle, so he couldn't get too far
Example Output: not plausible

Example Input: It got dark outside, so didn't help us
Example Output: not plausible

Example Input: The man dropped food on the floor, so I asked him what was going on
Example Output:
plausible