public override bool CanResolve(MentionContext context)
{
if (PartsOfSpeech.IsNoun(context.HeadTokenTag))
{
return(context.PreviousToken != null && predicativePattern.IsMatch(context.PreviousToken.ToString()));
}
return(false);
}
private static string GetHeadTag(Tree t)
{
if (PartsOfSpeech.IsNoun(t.Value()))
{
return(Noun);
}
else if (PartsOfSpeech.IsAdjective(t.Value()))
{
return(Adjective);
}
else
{
return(Noun);
}
}
private void CollectCoordinatedNounPhraseMentions(IParse nounPhrase, List <Mention> entities)
{
List <IParse> nounPhraseTokens = nounPhrase.Tokens;
bool inCoordinatedNounPhrase = false;
int lastNounPhraseTokenIndex = mHeadFinder.GetHeadIndex(nounPhrase);
for (int tokenIndex = lastNounPhraseTokenIndex - 1; tokenIndex >= 0; tokenIndex--)
{
IParse token = nounPhraseTokens[tokenIndex];
string tokenText = token.ToString();
if (tokenText == "and" || tokenText == "or")
{
if (lastNounPhraseTokenIndex != tokenIndex)
{
if (tokenIndex - 1 >= 0 && PartsOfSpeech.IsNoun(nounPhraseTokens[tokenIndex - 1].SyntacticType))
{
var nounPhraseSpan = new Util.Span((nounPhraseTokens[tokenIndex + 1]).Span.Start, (nounPhraseTokens[lastNounPhraseTokenIndex]).Span.End);
var nounPhraseSpanExtent = new Mention(nounPhraseSpan, nounPhraseSpan, token.EntityId, null, "CNP");
entities.Add(nounPhraseSpanExtent);
inCoordinatedNounPhrase = true;
}
else
{
break;
}
}
lastNounPhraseTokenIndex = tokenIndex - 1;
}
else if (inCoordinatedNounPhrase && tokenText == PartsOfSpeech.Comma)
{
if (lastNounPhraseTokenIndex != tokenIndex)
{
var nounPhraseSpan = new Util.Span((nounPhraseTokens[tokenIndex + 1]).Span.Start, (nounPhraseTokens[lastNounPhraseTokenIndex]).Span.End);
var nounPhraseSpanExtent = new Mention(nounPhraseSpan, nounPhraseSpan, token.EntityId, null, "CNP");
entities.Add(nounPhraseSpanExtent);
}
lastNounPhraseTokenIndex = tokenIndex - 1;
}
else if (inCoordinatedNounPhrase && tokenIndex == 0 && lastNounPhraseTokenIndex >= 0)
{
var nounPhraseSpan = new Util.Span((nounPhraseTokens[tokenIndex]).Span.Start, (nounPhraseTokens[lastNounPhraseTokenIndex]).Span.End);
var nounPhraseSpanExtent = new Mention(nounPhraseSpan, nounPhraseSpan, token.EntityId, null, "CNP");
entities.Add(nounPhraseSpanExtent);
}
}
}
private void Initialize(Mention.IHeadFinder headFinder)
{
Mention.IParse head = headFinder.GetLastHead(Parse);
List <Mention.IParse> tokenList = head.Tokens;
this.HeadTokenIndex = headFinder.GetHeadIndex(head);
Mention.IParse headToken = headFinder.GetHeadToken(head);
_tokens = tokenList.ToArray();
this.HeadTokenTag = headToken.SyntacticType;
this.HeadTokenText = headToken.ToString();
if (PartsOfSpeech.IsNoun(this.HeadTokenTag) && !PartsOfSpeech.IsProperNoun(this.HeadTokenTag))
{
this.Synsets = GetSynsetSet(this);
}
else
{
this.Synsets = new Util.HashSet <string>();
}
}
private bool IsCommonNoun(Context nounPhrase)
{
return(!PartsOfSpeech.IsProperNoun(nounPhrase.HeadTokenTag) && PartsOfSpeech.IsNoun(nounPhrase.HeadTokenTag));
}