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: My favorite song came on the radio, so I had to sing it
Example Output: plausible

Example Input: My foot went numb, so I had to come back to the doctor
Example Output: plausible

Example Input: The terrorist set off the bomb, so it was a win-win situation
Example Output:
not plausible