Evaluating XPath Expresssions

XPath	Result of XPath Evaluation
(1, 2, 3)	1 2 3
('red', 'white', 'blue')	red white blue
(//planet/name)	<name>Mercury</name> <name>Venus</name> <name>Earth</name>

The XML Document

<planets>
    <planet>
        <name>Mercury</name>
        <mass units="(Earth = 1)">.0553</mass>
        <day units="days">58.65</day>
        <radius units="miles">1516</radius>
        <density units="(Earth = 1)">.983</density>
        <distance units="millions miles">43.4</distance>
    </planet>
    <planet>
        <name>Venus</name>
        <mass units="(Earth = 1)">.815</mass>
        <day units="days">116.75</day>
        <radius units="miles">3716</radius>
        <density units="(Earth = 1)">.943</density>
        <distance units="millions miles">66.8</distance>
    </planet>
    <planet>
        <name>Earth</name>
        <mass units="(Earth = 1)">1</mass>
        <day units="days">1</day>
        <radius units="miles">2107</radius>
        <density units="(Earth = 1)">1</density>
        <distance units="millions miles">128.4</distance>
    </planet>
</planets>