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

Sentence: 'a batter waits for the next pitch during a baseball game'. Count the occurrences of the word 'a' in the given sentence.
2

Sentence: 'a truck and luggage sitting on a cart by the dining saloon car of a train'. Count the occurrences of the word 'a' in the given sentence.
3

Sentence: 'a flower arrangemnet in a vase sitting on a cabinet in a dining room'. Count the occurrences of the word 'vase' in the given sentence.

1