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

Q: Sentence: 'a couple of skis sticking out of a snow covered ground'. Count the occurrences of the word 'of' in the given sentence.

A: 2
****
Q: Sentence: 'several sheet grazing on greens near some mountains'. Count the occurrences of the word 'mountains' in the given sentence.

A: 1
****
Q: Sentence: 'a picture of a cell phone and a knitted cell phone cover'. Count the occurrences of the word 'a' in the given sentence.

A:
3
****