Как удалить данные из PointerTargetNodeList?

Question

Я хочу удалить все лишние детали, обратите внимание, что тип возвращаемого значения - PointerTargetNodeList, а не String.

Это вывод кода:

Direct hypernyms of "apple":
  [PointerTargetNode: [Synset: [Offset: 7721676] [POS: noun] Words: edible_fruit -- (edible reproductive body of a seed plant especially one having sweet flesh)] null]
  [PointerTargetNode: [Synset: [Offset: 13159619] [POS: noun] Words: pome, false_fruit -- (a fleshy fruit (apple or pear or related fruits) having seed chambers and an outer fleshy part)] null]
Direct hypernyms of "banana":
  [PointerTargetNode: [Synset: [Offset: 12226211] [POS: noun] Words: herb, herbaceous_plant -- (a plant lacking a permanent woody stem; many are flowering garden plants or potherbs; some having medicinal properties; some are pests)] null]
Direct hypernyms of "mango":
  [PointerTargetNode: [Synset: [Offset: 12672582] [POS: noun] Words: fruit_tree -- (tree bearing edible fruit)] null]

И требуемый вывод:

May 03, 2018 8:30:08 PM net.didion.jwnl.util.MessageLog doLog
INFO: Installing dictionary net.didion.jwnl.dictionary.FileBackedDictionary@506e1b77

Direct hypernyms of "apple":edible_fruit pome, 
false_fruit  
Direct hypernyms of "banana": herb, herbaceous_plant 
Direct hypernyms of "mango": fruit_tree 

И код выглядит следующим образом:

private static PointerTargetNodeList demonstrateListOperation(IndexWord word) throws JWNLException {
    try {
        PointerTargetNodeList hypernyms = PointerUtils.getInstance().getDirectHypernyms(word.getSense(1));
        System.out.println("Direct hypernyms of \"" + word.getLemma() + "\":");
        return hypernyms;
    } catch(Exception exx){
        exx.printStackTrace();
        System.exit(-1);
    }

    return null;
}