::= { } 'THIS.DIE(' ')' ';' ::= <~ATH loop> | | | <~ATH loop> ::= '~ATH(' ')' '{' { } '}' ::= 'EXECUTE(' '(' | | | 'NULL' ) ')' ';' ::= 'bifurcate' '[' ',' ']' ';' ::= ( | 'THIS' ) '.DIE(' ')' ';' | '[' { ',' } ']' '.DIE(' ')' ';' ::= 'import' ';' ::= 'PRINT' '"' {Printable} '"' ';' ::= {a-Z,1-9,-,_} '.~ATH' ::= {a-Z,1-9,_} ::= 'universe' | 'abstract' | 'library' | 'input'