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

Sentence: 'a close up of a child at a table with a cake'. Count the occurrences of the word 'a' in the given sentence.
4

Sentence: 'a white dog and a person with an umbrella and red jacket'. Count the occurrences of the word 'and' in the given sentence.
2

Sentence: 'a woman standing next to a horse with a harness on'. Count the occurrences of the word 'on' in the given sentence.
1