Simplify the following text for a Grade 7 native English-speaking person.
Original: Bad Friedrichshall is a town in the district of Heilbronn in Baden-W Ã 1\/4 rttemberg in southern Germany .
Simplified: Bad Friedrichshall is a small town with about 18.000 inhabitants . It is in the district of Heilbronn , Baden-W Ã 1\/4 rttemberg , Germany .