Arrange related variables in a set and visualize relations

edit

Hi,

I have a basic question, let me explain with this simple example;

variables;

b=var('b')
c=var('c')
d=var('d')
e=var('e')
f=var('f')
g=var('g')

relations;

a = b + c
m = d + e + b
n = f + g + c

So everything is related to each other. I want to form some kind of set-system and visualize these relations in Sage with arrows and so on. How can I achieve this ?

Thank you.