Complex sentence: In 1992 she switched to breath-held diving and came to the attention of trainer Omar Oramas who could see that the petite Cubana, only 5 foot 4 and 57 kilos but with an impressive 6 liter lung capacity could rise to great depths.
Split into simpler sentences: In 1992 she switched to breath-held diving, and came to the attention of trainer Omar Oramas. He could see that the petite Cubana, only 5 foot 4 and 57 kilos but with a 6 liter lung capacity, had the potential to reach great depths.