Complex sentence: Moshiri studied fine arts at CalArts in Pasadena, California, in the 1980s, where he first started experimenting with installations, video art and painting, before moving back to Tehran in 1991.
Split into simpler sentences: Moshiri studied fine arts at CalArts in Pasadena, California in the 1980s. In America he first started experimenting with installations, video art and painting, before moving back to Tehran in 1991.