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No Format
<key word> ::= <reserved word>
<reserved word> ::= NOT | AND | POINTOR | LINESTRINGLIKE |
POLYGON | MULTIPOINT
                    IS | NULL |
                    EXISTS | MULTILINESTRINGDOES-NOT-EXIST |
MULTIPOLYGON | EMPTY                    DURING | AFTER | DATEBEFORE
                    IN | TIMEINCLUDE | TIMESTAMPEXCLUDE |
                    TRUE | FALSE |
TRUE | UNKNOWN                    EQUALS | DISJOINT | LIKEINTERSECTS | TOUCHES | CROSSES | WITHIN |                   CONTAINS| MINUTEOVERLAPS | MONTHRELATE | NOTDWITHIN | NULL | INCLUDEBEYOND
                    POINT | LINESTRING | EXCLUDE
POLYGON | 
                    MULTIPOINT | MULTILINESTRING | MULTIPOLYGON | GEOMETRYCOLLECTION
No Format
<unsigned numeric literal> ::= <exact numeric literal>
                              | <approximate numeric literal>
<exact numeric literal> ::=
                <unsigned integer> [<period>[<unsigned integer> ] ]
                | <period> <unsigned integer>
<unsigned integer> ::= <digit>...
<approximate numeric literal> ::= <mantissa> E <exponent>
<mantissa> ::= <exact numeric literal>
<exponent> ::= <signed integer>
<signed integer> ::= [ <sign> ] <unsigned integer>
<sign> ::= <plus sign> | <minus sign>
<character string literal> ::=
      <quote> [ <character representation>... ] <quote>
<character representation> ::= <nonquote character> | <quote symbol>
<quote symbol> ::= <quote><quote>

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