David Iannucci wrote:
Literally: "futari" = "two people", "sannin" = "three people", "taninzu" = "many people".
Which agrees with the counting we did in UH Japanese intensive course I took. (at least I learned what hitori waza meant
The official label for Taigi 20 given in the Ki Society is
"Futari gake, Sannin Gake"
The first 4 techinques demonstrated have two ukes grabbing nage.
The 5th technique has an additional uke grabbing from behind.
Then a 3 person randori finishes the taigi (though very often an additional two ukes are added to make it a 5 person randori (gonin IIRC) ).