Complex sentence: It was created by people from other none industrial parts of England, as an insult for been mainly an industrial economy, Newcastle-upon-Tyne (known as "Geordies") and Sunderland ("Mackems").
Split into simpler sentences: It was created by people from other none industrial parts of England, as an insult for been mainly an industrial economy. The name has not come from either Newcastle-upon-Tyne (known as "Geordies") and Sunderland ("Mackems").