<prompt> Theha polelo e tloaelehileng e lumellanang le linomoro tsa linomoro tse 5 tse qalang ka 4.nan  <response>: Instruction in English: Construct a regular expression that matches all 5-digit numbers that start with 4. . Response in English: The regular expression that matches all 5-digit numbers that start with 4 would be 4d4. The 4 at the start of the expression indicates that the number must start with 4. The d represents any digit, and the 4 indicates that there should be four digits following the leading 4. The entire expression therefore means that the number should start with 4 and be followed by four digits, resulting in a 5-digit number that starts with 4. . Response in Sesotho: Polelo e tloaelehileng e tsamaellanang le linomoro tsa linomoro tse 5 tse qalang ka 4 e tla ba 4d4. 4 qalong ea polelo e bontša hore palo e tlameha ho qala ka 4. d e emela nomoro efe kapa efe, me 4 e bontša hore ho lokela ho ba le linomoro tse nè ho latela 4. Polelo eohle. kahoo ho bolela hore palo e lokela ho qala ka 4 me e lateloe ke linomoro tse nè, e leng se etsang hore ho be le linomoro tse 5 tse qalang ka 4. 