[6t] r e t 4 t t t 8---- [6t] r e t 4 y u u 8--i-u- [4y]-e---- e t-y- [5y]---- [6t] r e t 4 t t t 8---- [6t] r e t 4 y u u 8--i-u- [4y]-e---- i-u- [5y]---- [6t] t t y-u - [4t] t t y-u - [8t] t t o-i u y 5 y-i-u - [6t] t t y-u - [4t] t t y-u u u 8---u- [5y]---- [6t] t t y-u - [4t] t t y-u - [8t] t t o-i u y 5 y-i-u - [6t] t t y-u - [4t] t t y-u u u 8---u- [5y]