http://www.w3.org/ns/prov#value | - ng, upgrading, selling tickets, and other event admittance meanUS7562051Jan 29, 2008Jul 14, 2009Donner Irah HSystem and method for reallocating and/or upgrading and/or selling tickets, other event admittance means, goods and/or servicesUS7565328Oct 29, 2007Jul 21, 2009Donner Irah HSystem and method for determining and/or transmitting and/or establishing communication with a mobile device user for
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