A boy in an orange life vest plays on the shore with his net while his father in a red shirt and straw hat fishes .
It is probably the case that a dad instructed his son to play near the shore while he was fishing .
It is probably the case that a dad instructed his son to play near the shore while he was fishing .
It is improbable that a dad instructed his son to play near the shore while he was fishing .
A dad instructed his son to play near the shore while he was fishing .