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Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE file distributed with this work for additional information regarding copyright ownership. The ASF licenses this file to you under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.
public class ParseFeatureExtractor implements RelationFeaturesExtractor {
   * (non-Javadoc)
   * @see, org.apache.ctakes.typesystem.type.textsem.IdentifiedAnnotation, org.apache.ctakes.typesystem.type.textsem.IdentifiedAnnotation)
   * This feature extractor finds the lowest dominating phrase category of each
   * argument, then specifies if one dominates t'other.
	public List<Feature> extract(JCas jCasIdentifiedAnnotation arg1,
		List<Feature> features = new ArrayList<Feature>();
		TreebankNode tree1 = AnnotationTreeUtils.annotationNode(jCasarg1);
		TreebankNode tree2 = AnnotationTreeUtils.annotationNode(jCasarg2);
		TreebankNode phrase1 = tree1;
		TreebankNode phrase2 = tree2;
		while(phrase1.getParent() != null){
			phrase1 = phrase1.getParent();
			if(phrase1.getNodeType().endsWith("P")) break;
		while(phrase2.getParent() != null){
			phrase2 = phrase2.getParent();
			if(phrase2.getNodeType().endsWith("P")) break;
		if(phrase1.getBegin() <= phrase2.getBegin() && phrase1.getEnd() >= phrase2.getEnd()){
			features.add(new Feature("Arg1DominatesArg2"));
		}else if(phrase2.getBegin() <= phrase1.getBegin() && phrase2.getEnd() >= phrase1.getEnd()){
			features.add(new Feature("Arg2DominatesArg1"));
//		TreebankNode lca = AnnotationTreeUtils.getCommonAncestor(tree1, tree2);
//		features.add(new Feature("LCA", lca));
		return features;
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