8533
By contrast with Riemannian geometry , where the curvature provides a local invariant of Riemannian manifolds , Darboux 's theorem states that all symplectic manifolds are locally isomorphic .
 person: Riemannian; person: Riemannian; person: Darboux
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 person: Riemannian; person: Riemannian; person: Darboux