Web Search Web Search with Context Creative Commons Web Search News Search Image Search Local Search Audio Search Video Search Site Explorer Events (upcoming.org) Flickr Maps Geocoding Placemaker YQL Context Extraction Service Context Extraction Service _Parameter Value Description _ appid string (required) The application ID. See Application IDs for more information. context string (required) The context to extract terms from (UTF-8 encoded). query string An optional query to help with the extraction process. ".print_r($xml,1).""; ?>]]>