digraph G {
graph [overlap=false, nodesep=0.05, splines="true", start=2]
node [fontname=Arial, style=filled, fontsize="10"];
edge  [fontname=Arial, fontsize=8, arrowsize=0.5]

haeus [label = "Rudi Häussler, \n Bauunternehmer"];
spaet [label = "Lothar Späth, \n Ex-Ministerpräsident"];
herrk [label = "Martin Herrenknecht, \n Tunnelbauer"];
oetti [label = "Günther Öttinger, \n Ex-Ministerpräsident"];
beyer [label = "Friederike Beyer"];
swmh  [label = "SWMH \n (Presse)"];
foell [label = "Michael Föll, \n 2.OB, Bau-OB"];
lbbw  [label = "LBBW \n (Bank)"];
grube [label = "Rüdiger Grube, \n Bahnchef"];
mappu [label = "Stefan Mappus, \n Ministerpräsident"];
wolff [label = "Wolf+Müller"];
drexl [label = "Wolfgang Drexler, \n Fraktionschef SPD"];
schus [label = "Wolfgang Schuster, \n OB"];
duerr [label = "Heinz Dürr, \n Ex-Bahnchef"];
goenn [label = "Tanja Gönner, \n Verkehrsministerin"];
ece   [label = "ECE"];
ingen [label = "Christof Ingenhoven, \n S21-Architekt"];
mehdo [label = "Hartmut Mehdorn, \n Ex-Bahnchef"];
daiml [label = "Daimler"];
s21be [label = "S21-Beirat"];
s21   [label = "S21", shape=box, fillcolor=skyblue];

grube -> haeus [label="früher \n beteiligt"];
oetti -> haeus [label="Bundesverdienstkreuz"];
spaet -> herrk [label="Aufsichtsrat"];
haeus -> s21 [label="baut vermutlich Großprojekt"];
haeus -> s21be [label=""];
spaet -> s21be [label=""];
herrk -> s21be [label="Unterstützerkreis"];
oetti -> herrk [label="garantiert \n keine Ausschreibung"];
oetti -> beyer [label="Lebenspartner", dir=both];
beyer -> ece [label="Beirat"];
ingen -> ece [label="Beirat"];
goenn -> ece [label="Ex-Beirat"];
ece -> s21 [label="baut gr. \n Einkaufszentrum"];
herrk -> s21 [label="baut Tunnel für"];
swmh -> s21 [label="positive \n Berichte"];
lbbw -> swmh [label="Kredit / Darlehen"];
foell -> wolff [label="berät"];
wolff -> s21 [label="Abrissarbeiten"];
mappu -> lbbw [label="Trägerversammlung"];
grube -> s21be [label=""];
drexl -> s21be [label=""];
duerr -> lbbw [label="Verwaltungsrat"];
schus -> lbbw [label="Verwaltungsrat"];
drexl -> s21 [label="Ex-Sprecher"];
schus -> ece [label="Ex-Beirat"];
mehdo -> daiml [label="Ex"];
grube -> daiml [label="Ex"];
duerr -> daiml [label="Ex"];
}