nuclear fission pit stripe touch
uncontrolled_nuclear_fission is nuclear_fission. natural_nuclear_fission_reactor is uranium. nuclear_fission is not spewing. controlled_nuclear_fission is not nuclear_fission. fission is nuclear_reaction. fission is not nuclear_reaction. nuclear_fission is not nuclear_process. single_nuclear_fission is nuclear_event. natural_nuclear_fission_reactor is not uranium. single_nuclear_fission is not nuclear_event.