CREATE TABLE "current_fleet" (
  "vessel" text,
  "built" real,
  "max_speed" text,
  "length" text,
  "breadth" text,
  "flag" text,
  "propulsion" text
);

Question: What is the length when the propulsion is controllable pitch propeller?
SQL: SELECT "length" FROM "current_fleet" WHERE "propulsion"='Controllable pitch propeller';

Question: What is the max speed when the vessel is gallion?
SQL: SELECT "max_speed" FROM "current_fleet" WHERE "vessel"='Gallion';

Question: How many breadth entries are there when the vessel is marianarray?
SQL: SELECT COUNT("breadth") FROM "current_fleet" WHERE "vessel"='Marianarray';

Question: What is the propulsion when the vessel is marianarray?
SQL: SELECT "propulsion" FROM "current_fleet" WHERE "vessel"='Marianarray';

Question: How many breadth entries are there when propulsion is jet?
SQL: SELECT COUNT("breadth") FROM "current_fleet" WHERE "propulsion"='Jet';