| http://www.w3.org/ns/prov#value | - Opened in the early 1920s as a livestock exhibition and auction facility, the Expo Center now hosts over 100 events a year, including green consumer shows, trade shows, conventions, meetings and other special events.[1] Located on the north side of Portland near Vancouver, Washington, it includes the northern terminus for the Yellow Line of Portland's light-rail transit system and has connecttions
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