premise:  Pim wanted to go horseback riding. He had never even petted a horse before. Pim's friends told him it was not a fun thing to do. Pim defied their nay-saying and booked a lesson anyway. Pim had a great time and mentally devalued his friends' advice.
hypothesis:  Pim found a place that had horseback riding lessons ends after he booked a lesson anyways 