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The monotypic families Taccaceae and Trichopodaceae were included in Dioscoreaceae , while Nartheciaceae could also be grouped within Dioscoreales .
 Taccaceae, Trichopodaceae, Nartheciaceae
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Taccaceae, Trichopodaceae, Nartheciaceae