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 police officer dropped the gun, so he couldn't do anything about it
Example Output: not plausible

Example Input: The host served dinner to his guests, so we were able to get a table
Example Output: plausible

Example Input: It got dark outside, so I didn't have to go outside
Example Output:
plausible