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    <link:label id="lab_vprt_AustraliaMember_54B109ED732D1D8527B499B90675BBA9_terseLabel_en-US" xlink:label="lab_vprt_AustraliaMember_54B109ED732D1D8527B499B90675BBA9" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Australia [Member]</link:label>
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    <link:label id="lab_vprt_AustraliaMember_54B109ED732D1D8527B499B90675BBA9_documentation_en-US" xlink:label="lab_vprt_AustraliaMember_54B109ED732D1D8527B499B90675BBA9" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Australia.</link:label>
    <link:loc xlink:href="vprt-20120930.xsd#vprt_AustraliaMember" xlink:label="loc_vprt_AustraliaMember_54B109ED732D1D8527B499B90675BBA9" xlink:type="locator" />
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    <link:loc xlink:href="vprt-20120930.xsd#vprt_BermudaMember" xlink:label="loc_vprt_BermudaMember_83D53EAE65A8203A42AF99B906751695" xlink:type="locator" />
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    <link:loc xlink:href="vprt-20120930.xsd#vprt_SwitzerlandMember" xlink:label="loc_vprt_SwitzerlandMember_DAF95D0B8283FDA47DBC99B906755D94" xlink:type="locator" />
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    <link:loc xlink:href="vprt-20120930.xsd#vprt_SpainMember" xlink:label="loc_vprt_SpainMember_092C18A0E42EF6D7C84899B90675D450" xlink:type="locator" />
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    <link:loc xlink:href="vprt-20120930.xsd#vprt_OtherCountriesMember" xlink:label="loc_vprt_OtherCountriesMember_2EAFC76D69BB0FA8EFAF99B90675F205" xlink:type="locator" />
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_RevenuesFromExternalCustomersAndLongLivedAssetsLineItems" xlink:label="loc_us-gaap_RevenuesFromExternalCustomersAndLongLivedAssetsLineItems_CA76AB9EBFE3790F3ADC99B9067567C5" xlink:type="locator" />
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_GeographicAreasLongLivedAssetsAbstract" xlink:label="loc_us-gaap_GeographicAreasLongLivedAssetsAbstract_AACDBE08CA8F4FEC928D99B90675D876" xlink:type="locator" />
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    <link:label id="lab_vprt_OtherPurchaseCommitmentsMember_AD14C29E87860DF5038E9A0160E3540C_terseLabel_en-US" xlink:label="lab_vprt_OtherPurchaseCommitmentsMember_AD14C29E87860DF5038E9A0160E3540C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other purchase commitments [Member]</link:label>
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    <link:label id="lab_vprt_AccruedShippingCostsCurrent_B0D509A25410AD288C298F784CEC205D_terseLabel_en-US" xlink:label="lab_vprt_AccruedShippingCostsCurrent_B0D509A25410AD288C298F784CEC205D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Shipping costs</link:label>
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    <link:label id="lab_us-gaap_AccruedProfessionalFeesCurrent_3DBDB2DFA7FE2F63772E8F784CECCC09_terseLabel_en-US" xlink:label="lab_us-gaap_AccruedProfessionalFeesCurrent_3DBDB2DFA7FE2F63772E8F784CECCC09" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Professional costs</link:label>
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    <link:label id="lab_vprt_AccruedLiabilityForPurchasesOfPropertyPlantAndEquipment_27241F272AD9E8F577488F784CEC6B54_terseLabel_en-US" xlink:label="lab_vprt_AccruedLiabilityForPurchasesOfPropertyPlantAndEquipment_27241F272AD9E8F577488F784CEC6B54" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Purchases of property, plant and equipment</link:label>
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