[5y]-[5r]-[5y]- [5o] - ( [0y]- [8o]-u-[5u]- [5y]--- e-r-t- r--- [9y]-[7o]-[6p]- [5a]--- [6p]--[5a]- [2p]--- 9-7-6- [5o]--- [5a] - [6p] [7o]- [8u]--6- [9p]-y-[$I]- [5o]---- [9o]-[7p]-[6a]- [5s]--[5s]- [5a]-[7r]-[5s]- [9p]--- 5-7-9- [5o]--- [9a]--[2p]- [2o]-y-I- [5o]---- [7o]-[6p]-[7a]- [5s]--[5s]- [5a]-3-[6s]- [2p]--- 7-9-- [5o]-[5o]-[7o]- [9a]-8-[6p]- [2o]-y-[$I]- [5o]---- [5y]-[5r]-[5y]- [5o] - ( [0y]- [8o]-u-[5u]- [5y]--- e-r-t- r--- [9y]-[7o]-[6p]- [5a]--- [6p]--[5a]- [2p]--- 9-7-6- [5o]--- [5a] - [6p] [7o]- [8u]--6- [9p]-y-[$I]- [5o]---- [9o]-[7p]-[6a]- [5s]--[5s]- [5a]-[7r]-[5s]- [9p]--- 5-7-9- [5o]--- [9a]--[2p]- [2o]-y-I- [5o]---- [7o]-[6p]-[7a]- [5s]--[5s]- [5a]-3-[6s]- [2p]--- 7-9-- [5o]-[5o]-[7o]- [9a]-8-[6p]- [2o]-y-[$I]- [5o]