Complex sentence: Perez Perry was hired by the Government of Puerto Rico as a communications consultant and later founded the "Escuela del Aire" (Airwaves School) which in 1945 became the radio station known as "WIPR".
Split into simpler sentences: Perez Perry was hired by the Government of Puerto Rico as a communications consultant. He founded the "Escuela del Aire" (Airwaves School) which in 1945 became the radio station known as "WIPR".