CREATE TABLE "specific_fuel_consumption_sfc_specific_i" (
  "engine_type" text,
  "scenario" text,
  "sfc_in_lb_lbf_h" text,
  "sfc_in_g_k_n_s" text,
  "specific_impulse_s" real,
  "effective_exhaust_velocity_m_s" real
);

Question: What engine type is used in a Space Shuttle Vacuum scenario?
SQL: SELECT "engine_type" FROM "specific_fuel_consumption_sfc_specific_i" WHERE "scenario"='Space shuttle vacuum';

Question: What is the effective exhaust velocity in a Space Shuttle Vacuum?
SQL: SELECT COUNT("effective_exhaust_velocity_m_s") FROM "specific_fuel_consumption_sfc_specific_i" WHERE "scenario"='Space shuttle vacuum';

Question: What is the maximum specific impulse with a 4423 m/s effective exhaust velocity?
SQL: SELECT MAX("specific_impulse_s") FROM "specific_fuel_consumption_sfc_specific_i" WHERE "effective_exhaust_velocity_m_s"=4423;

Question: What is the SFC when the specific impulse is 453?
SQL: SELECT "sfc_in_g_k_n_s" FROM "specific_fuel_consumption_sfc_specific_i" WHERE "specific_impulse_s"=453;