Find the odd word out in each group
1) Tomsk oblast, Irkutsk oblast, Zabaikalsk krai, Krasnoyarsk krai, Novosibirsk oblast, Primorsky krai.
2) Gornaya, Verkhovik, Snezhnaya, Kultuk, Shelonnik, Angara.
3) Selenga, Barguzin, Angara, Sarma, Buguldeika, Utulik/
4) grayling, golomyanka, nerpa, omul, epischura.
5) Upper Angara, Angara, Uda, Snezhnaya, Turka.