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(b (c, d, a), d (a, b, c), c (b, d, a), a (c, d, b)) - Coggle Diagram
b
c
a
d
d
a
d
a
c
c
a
a
c
d
d
c
d
a
b
c
c
b
b
a
c
c
a
c
a
b
b
a
c
b
a
d
d
s
d
a
b
b
a
a
b
d
d
b
a
c
b
d
d
b
d
b
c
c
b
b
c
d
d
c