Sagot :
Step-by-step explanation:
{} {a}{b}{c}{d}{e}{f}
a,b
a,c
a,d
a,e
a,f
b,c
b,d
b,e
b,f
c,d
c,e
c,f
d,e
d,f
a,b,c
e,f,d
a,b,c,d,e,d,g
Step-by-step explanation:
{} {a}{b}{c}{d}{e}{f}
a,b
a,c
a,d
a,e
a,f
b,c
b,d
b,e
b,f
c,d
c,e
c,f
d,e
d,f
a,b,c
e,f,d
a,b,c,d,e,d,g