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 group of dogs standing next to each other while on leashes'. How many words start with the letter 'o' in the sentence.
3

Sentence: 'an ostrich in the foreground with giraffes behind eating from a feeder'. How many words start with the letter 'w' in the sentence.
1

Sentence: 'a group of pizza delivery bicycles with racks and baskets'. How many words start with the letter 'g' in the sentence.

1