CREATE TABLE table_27877656_7 (opponent_team VARCHAR2, opponent VARCHAR2, edition VARCHAR2, outcome VARCHAR2)

For opponent is sandra kristj nsd ttir, outcome is winner and edition is 2009 europe/africa group iiib mention all the opponent team.
SELECT opponent_team FROM table_27877656_7 WHERE edition = "2009 Europe/Africa Group IIIB" AND outcome = "Winner" AND opponent = "Sandra Kristjánsdóttir"
SELECT "opponent_team" FROM "table_27877656_7" WHERE "2009 Europe/Africa Group IIIB" = "edition" AND "Sandra Kristjánsdóttir" = "opponent" AND "Winner" = "outcome"