While Gazprom , Russia 's state-controlled energy behemoth , said on Monday that it would resume pipeline shipments of natural gas across Ukraine to customers in Europe , its ability to rattle nerves during the European winter served as a reminder of the growing influence of countries rich in natural gas reserves .
Europe /location/location/contains Russia
Europe /location/location/contains Ukraine
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Europe
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Russia
LOCATION
/location/location/contains
Europe
LOCATION
Ukraine
LOCATION
/location/location/contains