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

Sentence: 'a small bird perched on a open window'. Replace the letter 'e' with 'r' in the sentence.
a small bird prrchrd on a oprn window

Sentence: 'one wall in the room is flanked by a lovely piece of furniture which displays several object d'art'. Replace the letter 'n' with 'z' in the sentence.
oze wall iz the room is flazked by a lovely piece of furziture which displays several object d'art

Sentence: 'a computer station with a very tall stake of french fry cartons'. Replace the letter 'h' with 'q' in the sentence.

a computer station witq a very tall stake of frencq fry cartons