`underset(* *)(":"S":")and "["overset(* *)underset(* *)(":"S":")"]"^(2-), overset(* *)underset(*)("."P".")and "["overset(* *)underset(* *)(":"P":")"]"^(-3)`
`overset(*)Na and [Na]^(+) , overset(*)("."A".")and [Al]^(3+), overset(*)Hand [overset(*)("."H)]^(-)`