Portuguese_3.0	Catalan_3.0	German_3.0	English_3.0	Basque_3.0	French_3.0	Galician_3.0	Spanish_3.0
	metano	metà	Methan	methane	metano	méthane	metano	metano
		gas_dels_pantans		marsh_gas			gas_de_pantano	gas_de_los_pantanos, metano