Osat_a	Osat_a # just one cluster member
Atha_b	Atha_b # >1 cluster member, this & next line = 2 members
Atha_b	Mtru_c 
Fves_d	Fves_d # this & next 2 lines = 3 cluster members
Fves_d	Osat_e
Fves_d	Atha_f
Atha_g	Atha_g # just 1 cluster member
Osat_h	Osat_h
Osat_h	Atha_i
Mtru_j	Mtru_j # just 1 cluster member

##</code><code>##

Osat_a
Atha_b, Mtru_c
Fves_d, Osat_e, Atha_f
Atha_g
Osat_h, Atha_i
Mtru_j