steam cracking waste following as the secondary matter sink
hydrocracking is cracking. waterflooding is secondary_oil_recovery. waterflooding is not secondary_oil_recovery. subsurface_pump_failure is pump_failure. steam is not gaseous_water. steam is gaseous_water. leak is soft_rot. beta_decay is spewing. gaseous_form_of_water is steam. gaseous_form_of_water is not steam.