//System.err.println("concept type = " + concept.getConceptType());
String conceptType = concept.getConceptType().toString();
int thisConceptBegin = concept.getBegin().getTokenOffset();
int thisConceptEnd = concept.getEnd().getTokenOffset();
if (concept.getBegin().getTokenOffset() < conceptBeginTokenOffset) {
trainingInstance.addFeature("concept_" + conceptType + "_left");
if ((conceptBeginTokenOffset - thisConceptEnd) < 4) {
trainingInstance.addFeature("concept_" + conceptType + "_left_3");
}
} else {
if ((thisConceptBegin - conceptEndTokenOffset) < 4) {