Perform the following three XPath queries on the XML Document below:
* '''//item[1]''': Retrieve the first "item" element
* '''//price/text()''': Perform an action on each "price" element (print it out)
* '''//name''': Get an array of all the "name" elements

XML Document:
 <inventory title="OmniCorp Store #45x10^3">
   <section name="health">
     <item upc="123456789" stock="12">
       <name>Invisibility Cream</name>
       <price>14.50</price>
       <description>Makes you invisible</description>
     </item>
     <item upc="445322344" stock="18">
       <name>Levitation Salve</name>
       <price>23.99</price>
       <description>Levitate yourself for up to 3 hours per application</description>
     </item>
   </section>
   <section name="food">
     <item upc="485672034" stock="653">
       <name>Blork and Freen Instameal</name>
       <price>4.95</price>
       <description>A tasty meal in a tablet; just add water</description>
     </item>
     <item upc="132957764" stock="44">
       <name>Grob winglets</name>
       <price>3.56</price>
       <description>Tender winglets of Grob. Just add water</description>
     </item>
   </section>
 </inventory>