What is the position of the player who played for the London Knights during 2009-2010?
CREATE TABLE "list_of_united_states_national_ice_hocke" (
  "position" text,
  "jersey_number" real,
  "name_v_t_e" text,
  "height_cm" real,
  "weight_kg" real,
  "birthplace" text,
  "2009_10_team" text,
  "nhl_rights_if_any" text
);
SELECT "position" FROM "list_of_united_states_national_ice_hocke" WHERE "2009_10_team"='london knights';