User:Mneme

Just messing around...

{{#wgraph:

 name=Meta_Modell|svg|thumb=50|

node Location          {color #e7c5d6 }
node Person            {color #eebb99 }
node Trip              {color #ccffaa }

nodetype * { color lightyellow borderwidth 1 bordercolor darkyellow href ":Category:%%" }

edge 'Person' "Location" { label "lives in" }}
edge 'Trip' "Location" { label "starts at" }}
edge 'Person' "Person" { label "taught by" }}
edge 'Trip' "Person" { label "had Participants" }}

/* */

splines yes

}}

Intermediate source for the above:

node Location          {color #e7c5d6 }
node Person            {color #eebb99 }
node Trip              {color #ccffaa }

nodetype * { color lightyellow borderwidth 1 bordercolor darkyellow href ":Category:%%" }

edge 'Person' "Location" { label "lives in" }}
edge 'Trip' "Location" { label "starts at" }}
edge 'Person' "Person" { label "taught by" }}
edge 'Trip' "Person" { label "had Participants" }}

/* */

splines yes

More experimentation:

node Location          {color #e7c5d6 }
node Person            {color #eebb99 }
node Trip              {color #ccffaa }