What is the Group Equity shareholding of the company that has their principal activities as catering, and is of the Associate type?
CREATE TABLE "subsidiaries" (
  "company" text,
  "type" text,
  "principal_activities" text,
  "incorporated_in" text,
  "group_s_equity_shareholding" text
);
SELECT "group_s_equity_shareholding" FROM "subsidiaries" WHERE "principal_activities"='catering' AND "type"='associate';