In this task, you need to count the number of words in a sentence that start with the given letter. Answer with numbers and not words.

Sentence: 'a large ceramic ornament is surrounded by a flower bed and several flowers bushes and shrubs on a bright cloudy day'. How many words start with the letter 'f' in the sentence.
2

Sentence: 'a couple of people sitting on a couch plays with a wii remote'. How many words start with the letter 'w' in the sentence.
2

Sentence: 'some zebras are in their pen and a tree'. How many words start with the letter 'a' in the sentence.

3