Task: Program Execution
Input (English): Sentence: 'the area is outdoors, a residential house exterior, driveway and yard area,  while specifically highlighted in the foreground are two riding toys, a horse and an elephant'. Replace the letter 'e' with 't' in the sentence.
Output (English): tht arta is outdoors, a rtsidtntial houst txttrior, drivtway and yard arta,  whilt sptcifically highlighttd in tht fortground art two riding toys, a horst and an tltphant