public static ArgPositionType getArgPositionType(DependencyTree tree, int aIdx) {
Bunsetsu aBun = tree.getBunsetsuFromNodeId(aIdx);
DependencyNode aBunHeadNode = aBun.getHeadNode();
if (aIdx == aBunHeadNode.getId()) {
return ArgPositionType.HEAD;
} else if (aIdx == aBunHeadNode.getId() - 1) {
return ArgPositionType.HEAD_LEFT;
} else if (aIdx == aBunHeadNode.getId() + 1) {
return ArgPositionType.HEAD_RIGHT;
} else {
return ArgPositionType.OTHER;
}
}
