  This paper attracts attention to the class of resolved triple stars with
moderate ratios of inner and outer periods (possibly in a mean motion
resonance) and nearly circular, mutually aligned orbits. Moreover, stars in the
inner pair are twins with almost identical masses, while the mass sum of the
inner pair is comparable to the mass of the outer component. Such systems could
be formed either sequentially (inside-out) by disk fragmentation with
subsequent accretion and migration or by a cascade hierarchical fragmentation
of a rotating cloud. Orbits of the outer and inner subsystems are computed or
updated in four such hierarchies: LHS 1070 (GJ 2005, periods 77.6 and 17.25
years), HIP 9497 (80 and 14.4 years), HIP 25240 (1200 and 47.0 years), and HIP
78842 (131 and 10.5 years).
