doha qatar foreign minister say wednesday country will negotiate end gulf diplomatic rift see sign saudi arabia countries impose sanction doha open mediation kuwait unite state try heal bitter dispute qatar four arab countries damage business tie disrupt travel thousands citizens six-nation gulf cooperation council egypt saudi arabia bahrain unite emirates sever political trade tie small gas-rich country june accuse support terrorism doha deny charge visit week uae qatar russian foreign minister sergei lavrov show sign ease tensions among gulf arab power qatar maintain position crisis achieve constructive dialogue ... blockade counties respond efforts conduct kuwait friendly countries qatari foreign minister sheikh mohammed bin abdulrahman al-thani tell reporters doha wednesday news conference russian counterpart uae ambassador unite state yousef al-otaiba interview u.s.-based magazine atlantic monday say country would negotiate qatar long doha set precondition talk sheikh mohammed say wednesday qatar plan bolster trade russia one world big gas exporters qatar could long rely neighbor state support economy guarantee food security lavrov say face-to-face negotiations start russia would ready contribute mediation russia interest gcc unite strong qatar say sign arab state will negotiate boycott