"severe overheating of the core of a nuclear reactor resulting in the core melting and radiation escaping"@en-us . "0.0676923"^^ . . . "0.183863"^^ . "13513362-n"^^ . . . "severe overheating of the core of a nuclear reactor resulting in the core melting and radiation escaping"@en-us . "0"^^ . "0.25"^^ . "0.209384"^^ . "meltdown"@en-us . "0.149206"^^ . . "113513362"^^ . "0.066263"^^ . "0.101657"^^ . "112749738"@en-us . "0.0955114"^^ . . . . "0.126423"^^ . . "nuclear meltdown"@en-us . "meltdown"^^ . .