Synset symbol is being truncated

[kliuless]

Example:

[3] pry(main)> WordNet::Lemma.find('turtle', :n).synsets[0]
=> #<WordNet::Synset:0x007ffa3381cd80
 @gloss="a sweater or jersey with a high close-fitting collar",
 @lex_filenum="06",
 @pointers=
  [#<WordNet::Pointer:0x007ffa3381c4e8 @offset=4370048, @pos="n", @source="00", @symbol="@", @target="00">,
   #<WordNet::Pointer:0x007ffa3381c3f8 @offset=3595614, @pos="n", @source="00", @symbol="@", @target="00">,
   #<WordNet::Pointer:0x007ffa3381c308 @offset=4502364, @pos="n", @source="00", @symbol="%", @target="00">],
 @pos="n",
 @pos_offset=4502197,
 @synset_offset="04502197",
 @synset_type="n",
 @word_counts={"turtleneck"=>0, "turtle"=>0, "polo-neck"=>0}>

Notice the third pointer's symbol is %. However, in the data.noun file, the symbol is %p. Looks like the problem is happening at https://github.com/doches/rwordnet/blob/master/lib/rwordnet/synset.rb#L75

I realize that @pointers is private data, but sometimes I want to see what relations are available by peeking into the private data.