Nidan-Ko-Soto-Gake
(two step minor outer hook)
"As Tori attacks with Ko-soto-gari
Uke raises his right leg in oder to defuse the attack. Tori switches
his assult onto Uke's left leg, imobilising Uke's right leg between
his thighs as he does so. Tori, placing his left foot on the rear
of Uke's left knee he throws Uke (ko-soto-gake fashion)."