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

Sentence: 'a tall plant protrudes from a glass vase'. Count the occurrences of the word 'a' in the given sentence.
2

Sentence: 'a red and whit jet blue sky and clouds'. Count the occurrences of the word 'and' in the given sentence.
2

Sentence: 'a closeup photo of a bird perched on a tree branch'. Count the occurrences of the word 'a' in the given sentence.

3