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

Sentence: 'a baseball player up to bat that just hit the ball'. Replace the letter 'r' with 'o' in the sentence.
a baseball playeo up to bat that just hit the ball

Sentence: 'three colorful knit bear toys with button eyes'. Replace the letter 'r' with 'z' in the sentence.
thzee colozful knit beaz toys with button eyes

Sentence: 'a white dog resting atop a bed of white blankets and pillows'. Replace the letter 'l' with 'b' in the sentence.

a white dog resting atop a bed of white bbankets and pibbows