[5s]-[8d]-[5a] - s [5P]-s-[5p] - P [$O]-P-[$o]-p- [8o]---- [5s]-8 d [5a] - s [5P]-s-[5p]-P- [$O]-P-[$I]-u- [6o]---- [8l] 0 w [tz] k w 0 [8l] J w [0l] 8 [(j] 8 E [wJ] H Q [(J] 8 h Q [(j] 8 [0f] 8 0 w t-- [8s] 0 w [td] a w 0 [8s] P w [0s] 8 [(p] 8 P w O Q [(P] 8 I Q [(u] 8 o 8 0 e w