CREATE TABLE "assembly_segments" (
  "constituency_number" text,
  "name" text,
  "reserved_for_sc_st_none" text,
  "district" text,
  "number_of_electorates_2003" real
);

Question: Which district had SC reserved and 169 Constituents?
SQL: SELECT "district" FROM "assembly_segments" WHERE "reserved_for_sc_st_none"='sc' AND "constituency_number"='169';

Question: What was reserved in the district that has 169 constituents?
SQL: SELECT "reserved_for_sc_st_none" FROM "assembly_segments" WHERE "constituency_number"='169';