Complex sentence: After attending the University of Ljubljana and leaving following her freshman year, Trump worked as a model for fashion houses in Milan and Paris, before relocating to New York City in 1996, her contract and visa negotiated by Italian businessman Paolo Zampolli.
Split into simpler sentences: After attending the University of Ljubljana for one year, she modeled for fashion houses in Milan and Paris. She then relocated to New York City in 1996, her contract and visa negotiated by Italian businessman Paolo Zampolli.