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How To Represent Dream5 Network (Gene Regulatory Networks)?

Hello, I want to write a program that visualize (as graph) gene network from DREAM project,

http://wiki.c2b2.columbia.edu/dream/index.php/D5c4

I have a question, I know that gold_standard.tsv file represent the network which contains data like that:

G92 G2 1

G232 G3 1

G2 G2154 0

G3 G2154 0

When I draw the network I draw an edge from G92 to G2 and from G232 to G3 , but I didn’t know what I have to do in :

G2 G2154 0

G3 G2154 0

I read that 0 means indirect effect, but I did not know how I can deal with it in the graph.

HELP me please

Thank you

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