In this task, you need to count the occurrences of the given word in the given sentence.

Sentence: 'flour people on a corner all using their cell phones'. Count the occurrences of the word 'on' in the given sentence.
1

Sentence: 'there are some chairs under an umbrella at the beach'. Count the occurrences of the word 'at' in the given sentence.
1

Sentence: 'a man in a black wet suit rides a white surfboard on top of a wave'. Count the occurrences of the word 'of' in the given sentence.
1