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" Cordaites " , a tall plant ( 6 to over 30 meters ) with strap-like leaves , was related to the cycads and conifers ; the catkin-like reproductive organs , which bore ovules / seeds , is called " Cardiocarpus " .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
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