/**
* Collect a list of pairs of constituents with the same syntactic function
* from the right periphery of two sentences. The right periphery
* encompasses the complements of the main verb, and its postmodifiers.
*
* @param sentences
* the list of sentences
* @return a list of pairs of constituents with the same function, if any
* are found
*/
public static IList <PhraseSet> rightPeriphery(params NLGElement[] sentences)
{
IList <PhraseSet> funcsets = new List <PhraseSet>();
PhraseSet comps = new PhraseSet(DiscourseFunction.OBJECT);
// new PhraseSet(DiscourseFunction.INDIRECT_OBJECT);
PhraseSet pmods = new PhraseSet(DiscourseFunction.POST_MODIFIER);
foreach (NLGElement s in sentences)
{
NLGElement vp = s.getFeatureAsElement(InternalFeature.VERB_PHRASE);
if (vp != null)
{
if (vp.hasFeature(InternalFeature.COMPLEMENTS))
{
comps.addPhrases(vp.getFeatureAsElementList(InternalFeature.COMPLEMENTS));
}
if (vp.hasFeature(InternalFeature.POSTMODIFIERS))
{
pmods.addPhrases(vp.getFeatureAsElementList(InternalFeature.POSTMODIFIERS));
}
}
if (s.hasFeature(InternalFeature.POSTMODIFIERS))
{
pmods.addPhrases(s.getFeatureAsElementList(InternalFeature.POSTMODIFIERS));
}
}
funcsets.Add(comps);
funcsets.Add(pmods);
return(funcsets);
}
/**
* Collect a list of pairs of constituents with the same syntactic function
* from the left periphery of two sentences. The left periphery encompasses
* the subjects, front modifiers and cue phrases of the sentences.
*
* @param sentences
* the list of sentences
* @return a list of pairs of constituents with the same function, if any
* are found
*/
public static IList <PhraseSet> leftPeriphery(params NLGElement[] sentences)
{
IList <PhraseSet> funcsets = new List <PhraseSet>();
PhraseSet cue = new PhraseSet(DiscourseFunction.CUE_PHRASE);
PhraseSet front = new PhraseSet(DiscourseFunction.FRONT_MODIFIER);
PhraseSet subj = new PhraseSet(DiscourseFunction.SUBJECT);
foreach (NLGElement s in sentences)
{
if (s.hasFeature(Feature.CUE_PHRASE))
{
cue.addPhrases(s.getFeatureAsElementList(Feature.CUE_PHRASE));
}
if (s.hasFeature(InternalFeature.FRONT_MODIFIERS))
{
front.addPhrases(s.getFeatureAsElementList(InternalFeature.FRONT_MODIFIERS));
}
if (s.hasFeature(InternalFeature.SUBJECTS))
{
subj.addPhrases(s.getFeatureAsElementList(InternalFeature.SUBJECTS));
}
}
funcsets.Add(cue);
funcsets.Add(front);
funcsets.Add(subj);
return(funcsets);
}