Hello. You forgot to show the story to which this question is related, which makes it impossible for it to be answered accurately. However, I will try to help you in the best possible way.
It is only possible to know the veritable and unbelievable events by reading the text, however, we can consider that logical and credible are the events that you think would be possible to happen in the real world. The unbelievable events, on the other hand, are those that you don't believe are likely to happen.
