Hierarchical triple system. The two massive stars form a wide SB2, consisting of one slow and one increased rotator (red and blue, respectively). Left: Increased rotator itself is a close SB1 with a hidden lower mass companion, the tertiary star (green). The tertiary may produce strong radial velocity variations. Right: Increased rotator has two hidden lower mass components (green) orbiting such that they balance out strong radial velocity variations of the high-mass star.