Complex sentence: In 1921, Leighton moved to Concepción for studied as apprentice in the laical section of the seminary, and the later year he moved again to Santiago for work in the local Jesuit School St. Ignacio.
Split into simpler sentences: In 1921, Leighton moved to Concepción for studies and apprenticeship in the lay section of the seminary. The next year he moved again to Santiago to work in the local Jesuit School St. Ignacio.