(n1 { Person } [ name: "Tim Berners-Lee", birthDate: 1955 ])
(n2 { City, Metropolis } [ name: "London" ])
(n3 { Country } [ name: "UK" ])
(n4 { Organization } [ name: "CERN" ])

(n1) -(r1 {birthPlace})-> (n2)
(n2) -(r2 { country})-> (n3)
(n1) -(r3 {employer} [ start: 1980, end: 1980 ])-> (n4)
(n1) -(r4 {employer} [ start: 1984, end: 1994 ])-> (n4)
