Complex sentence: Gualino saw the Rationalist work of Giuseppe Pagano in an exhibition in 1928 and commissioned Pagano to build his company's headquarters in Turin on Corso Vittorio Emanuele.
Split into simpler sentences: Gualino saw the Rationalist work of the architect Giuseppe Pagano in an exhibition in 1928. He commissioned Pagano to build his company's headquarters in Turin on Corso Vittorio Emanuele.