CREATE TABLE "list_of_state_leaders_in_the_20th_centur" (
  "type" text,
  "name" text,
  "title" text,
  "royal_house" text,
  "from" text
);

Question: What title did Mentuhotep IV have?
SQL: SELECT "title" FROM "list_of_state_leaders_in_the_20th_centur" WHERE "name"='mentuhotep iv';

Question: What is the title of Amenemhat II?
SQL: SELECT "title" FROM "list_of_state_leaders_in_the_20th_centur" WHERE "name"='amenemhat ii';

Question: What is the title of Senusret I?
SQL: SELECT "title" FROM "list_of_state_leaders_in_the_20th_centur" WHERE "name"='senusret i';

Question: What is the title of Amenemhat I?
SQL: SELECT "title" FROM "list_of_state_leaders_in_the_20th_centur" WHERE "name"='amenemhat i';

Question: What is the type shown from 1991 bc?
SQL: SELECT "type" FROM "list_of_state_leaders_in_the_20th_centur" WHERE "from"='1991 bc';