Complex sentence: Campina Grande is the second most populated city in the state of Paraíba (João Pessoa is the capital and largest city) and is considered one of the main industrial and technological centers in the northeastern region of Brazil.
Split into simpler sentences: Campina Grande is the second most populated city in the state of Paraíba in northeastern Brazil (João Pessoa is the capital and largest city). It is considered one of the main industrial and technological centers in the northeastern region of Brazil.