In this task, you need to replace a letter in the sentence with another given letter.

Sentence: 'a crowd watches as giraffes graze the tree tops at the zoo'. Replace the letter 't' with 'q' in the sentence.
a crowd waqches as giraffes graze qhe qree qops aq qhe zoo

Sentence: 'a police officer on a horse is riding down the street'. Replace the letter 'h' with 'a' in the sentence.
a police officer on a aorse is riding down tae street

Sentence: 'a woman in blue jacket shaving a cows utters'. Replace the letter 'h' with 'q' in the sentence.

a woman in blue jacket sqaving a cows utters