Original: Portishead ( ) is a coastal town in North Somerset , England , with a population of 21,000 ( estimate by town council , July 24 , 2007 ) an increase of nearly 4,000 since 2001 .
Simplified: Portishead is a town near the sea in North Somerset , England , where about 21000 people live ( Local council update July 24 , 2007 ) .