There is a theory that Gocho headed 'Go' (one of units of corps; literally meaning "five") consisting of five soldiers, but some people doubt of its existence because there were no definite regulations and there were no descriptions of its existence in found materials.
伍長が五人からなる「伍」を率いたとする説があるが、明確な規定がなく発掘資料にも見えないことから、存在を疑う者もいる。