#ignition the process of initiating combustion
supertype: #natural_process__naturalproces__natural_action__naturalaction__action__activity a process existing in or produced by nature (rather than by the intent of human beings); "the action of natural forces"; "volcanic activity"
subtype: #spontaneous_combustion__spontaneouscombustion ignition of a substance (as oily rags) resulting from an internal oxidation process
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