Table: state_elevations
Columns: state
highest_point
highest_elevation
lowest_point
lowest_elevation
mean_elevation

Question:  how many mean elevation with lowest point being gulf of mexico and state being texas
SQL: SELECT COUNT("mean_elevation") FROM state_elevations WHERE "lowest_point" = 'Gulf of Mexico' AND "state" = 'Texas'

Question: what's the highest point with lowest point being belle fourche river at south dakota border
SQL: SELECT "highest_point" FROM state_elevations WHERE "lowest_point" = 'Belle Fourche River at South Dakota border'

Question: what's the lowest elevation with highest point being charles mound
SQL: SELECT "lowest_elevation" FROM state_elevations WHERE "highest_point" = 'Charles Mound'

Question: what's the lowest point with highest point being mount greylock
SQL: SELECT "lowest_point" FROM state_elevations WHERE "highest_point" = 'Mount Greylock'

Question: what's the state with highest point being mount katahdin
SQL: SELECT "state" FROM state_elevations WHERE "highest_point" = 'Mount Katahdin'