create implication air_tank (531) -> gas_tank (243)
create implication helium_tank (255) -> gas_tank (243)
create implication oxygen_tank (340) -> gas_tank (243)
create implication hydrogen_tank (0) -> gas_tank (243)
create alias gastank (0) -> gas_tank (243)
create alias airtank (22) -> air_tank (531)
create alias hellium_tank (0) -> helium_tank (255)
create alias helluim_tank (0) -> helium_tank (255)
create alias hueluim_tank (0) -> helium_tank (255)