Three boys T, R and M are sit-
ting in a row facing towards
the north (not necessarily in
the same order) and three
girls F, G and K are
sitting in
a row facing towards the face
of these boys (not necessarily
in the same order). F and R
are diagonally opposite to each
other. K is not at any of the
ends.
Which of the following pairs
of persons facing towards
each other is/are definitely
correct?