Changes ground truth to be in dagitty format.

Updated the format of the graph representation to a new syntax.

Author: ankurankan

real/sachs/ground.truth/sachs.2005.ground.truth.graph.txt

@@ -1,25 +1,33 @@
-Graph Nodes:
-raf;mek;plc;pip2;pip3;erk;akt;pka;pkc;p38;jnk
-
-Graph Edges:
-1. erk --> akt
-2. mek --> erk
-3. pip2 --> pkc
-4. pip3 --> akt
-5. pip3 --> pip2
-6. pip3 --> plc
-7. pka --> akt
-8. pka --> erk
-9. pka --> jnk
-10. pka --> mek
-11. pka --> p38
-12. pka --> raf
-13. pkc --> jnk
-14. pkc --> mek
-15. pkc --> p38
-16. pkc --> pka
-17. pkc --> raf
-18. plc --> pip2
-19. plc --> pkc
-20. raf --> mek
-
+dag{
+raf
+mek
+plc
+pip2
+pip3
+erk
+akt
+pka
+pkc
+p38
+jnk
+erk -> akt
+mek -> erk
+pip2 -> pkc
+pip3 -> akt
+pip3 -> pip2
+pip3 -> plc
+pka -> akt
+pka -> erk
+pka -> jnk
+pka -> mek
+pka -> p38
+pka -> raf
+pkc -> jnk
+pkc -> mek
+pkc -> p38
+pkc -> pka
+pkc -> raf
+plc -> pip2
+plc -> pkc
+raf -> mek
+}