Simplify the following text for a Grade 9 native English-speaking person.
Original: In France , Hector Guimard 's Paris Metro entrances shaped the landscape of Paris and Emile GallÃ was at the center of the school of thought in Nancy .
Simplified: In France , Hector Guimard 's metro entrances shaped the landscape of Paris and Emile GallÃ was at the center of the school of thought in Nancy .