CREATE TABLE "table1_25401_15" (
  "english" text,
  "latin" text,
  "proto_italo_western_1" text,
  "conservative_central_italian_1" text,
  "italian" text,
  "spanish" text,
  "catalan" text,
  "old_french" text
);

Question: What is every value for Italian when the part is English?
SQL: SELECT "italian" FROM "table1_25401_15" WHERE "english"='part';

Question: What is every entry for Proto-Italo-Western 1 when door is English?
SQL: SELECT "proto_italo_western_1" FROM "table1_25401_15" WHERE "english"='door';

Question: How many entries for Italian correspond to the Conservative Central Italian of Unu?
SQL: SELECT COUNT("italian") FROM "table1_25401_15" WHERE "conservative_central_italian_1"='unu';

Question: What is every entry for Latin when Catalan is Mar?
SQL: SELECT "latin" FROM "table1_25401_15" WHERE "catalan"='mar';