Stellar Language Keywords
You can use Stellar language keywords to identify a syntactic form such as "not", "else", and "or."
The following keywords need to be single quote escaped in order to be used in Stellar expressions:
| not | else | exists | if | then |
| and | or | in | NaN | match |
| default | == | != | <= | > |
| <= | + | - | < | ? |
| * | / | , | { | } |
| => |
Using parens such as: "foo" : "<ok>" requires escaping; "foo": "'<ok>'"