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

Sentence: 'a person is riding a bicycle but there is a train in the background'. Count the occurrences of the word 'a' in the given sentence.
3

Sentence: 'a woman walking a large brown dog next to a tennis ball'. Count the occurrences of the word 'a' in the given sentence.
3

Sentence: 'a close up of a person wearing a suit and tie on a city street'. Count the occurrences of the word 'suit' in the given sentence.

1