Complex sentence: Antônio Mariano de Oliveira (April 5,1855--January 5,1937) was a Brazilian poet, pharmacist and professor, more well known by his pen name Alberto de Oliveira.
Split into simpler sentences: Antônio Mariano de Oliveira (April 5,1855--January 5,1937) was a Brazilian poet, pharmacist and professor. He is better known by his pen name Alberto de Oliveira.