Complex sentence: Yusuf al-Khal (1917--1987) was a Syrian-born poet who has made his career largely in Lebanon; with Ali Ahmad Said (a.k.a. Adonis), he founded the magazine "Shi'r" ("Poetry") in Beirut in 1957.
Split into simpler sentences: Yusuf al-Khal (1917--1987) was a Syrian-born poet. With Ali Ahmad Said (a.k.a. Adonis), al-Khal founded the magazine "Shi'r" ("Poetry") in Beirut in 1957.