Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_30054 ( "Outcome" text, "Edition" text, "Opponent Team" text, "Surface" text, "Opponent" text, "Score" text )

### Question ###
For opponent is sandra kristj nsd ttir, outcome is winner and edition is 2009 europe/africa group iiib mention all the opponent team.

### Accurate SQL ###

SELECT "Opponent Team" FROM table_30054 WHERE "Edition" = '2009 Europe/Africa Group IIIB' AND "Outcome" = 'Winner' AND "Opponent" = 'Sandra Kristjánsdóttir'