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

Q: the woman covered her ears because she didn't know what to say

A: not plausible
****
Q: the boy's mouth stung because it was his first time

A: not plausible
****
Q: the pharmaceutical company recalled the drug because the risk of serious side effects associated with the drug

A:
plausible
****