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

Q: Sentence: 'a small boy standing on a platform next to a train'. Count the occurrences of the word 'a' in the given sentence.

A: 3
****
Q: Sentence: 'a man performs a flip trick on a skateboard'. Count the occurrences of the word 'a' in the given sentence.

A: 3
****
Q: Sentence: 'a red and white birthday cake made like a truck'. Count the occurrences of the word 'a' in the given sentence.

A:
2
****