cause event 1
event headline: White House: Europe Determined To Ban Russian Energy Exports
event type: REDUCE RELATIONS
event time: 2022-04-22
subject name: EUROPE
object name: RUSSIAN

cause event 2
event headline: oil prices rise as europe weighs additional russia sanctions
event type: Engage in material cooperation
event time: 2022-04-04
subject name: INVESTOR
object name: YEMEN

cause event 3
event headline: G7 countries, including Canada, reject Russia's demand to pay for gas in rubles: Germany
event type: Reject
event time: 2022-03-28
subject name: UKRAINE
object name: RUSSIA

cause event 4
event headline: Russia orders troops into rebel-held regions in Ukraine
event type: Make statement
event time: 2022-02-22
subject name: RUSSIA
object name: REBEL