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perl -le '@x = qw(a b c d e f);
            @y = qw(a d f);
...
            print "Count of elements in (@y) that are NOT present in (
+@x) = $n"
           '
Count of elements in (a d f) that are NOT present in (a b c d e f) = 0

____DATA_____
b c a
...
e f g
g d f
h i g

a b c
a b d c
e f d g

component 1 = a b c
induced = b c a
...
component 3 = e f d g
induced = e f g
g d f