def METHOD_NAME(self, node):
    """
    Extract context configuration for verbs according to (Vulic et al., 2016).
    :param node: A node to be process.
    """
    # We want to extract contexts only for verbs.
    if str(node.upos) not in self.pos:
        return
    # Process node's parent.
    parent_deprel_orig = node.deprel
    parent_deprel_merged = _merge_deprel(parent_deprel_orig)
    if parent_deprel_orig in self.pool:
        self.print_triple(node, node.parent, parent_deprel_orig)
    if parent_deprel_orig != parent_deprel_merged and parent_deprel_merged in self.pool:
        relation_name = '%sI' % parent_deprel_merged
        self.print_triple(node, node.parent, relation_name)
    if parent_deprel_orig in self.pool and parent_deprel_orig == 'conj':
        self.print_triple(node, node.parent, parent_deprel_merged)
    # Process node's children.
    for child in node.children:
        child_deprel_orig = child.deprel
        child_deprel_merged = _merge_deprel(child_deprel_orig)
        if child_deprel_orig in self.pool:
            self.print_triple(node, child, child_deprel_orig)
        if child_deprel_orig != child_deprel_merged and child_deprel_merged in self.pool:
            self.print_triple(node, child, child_deprel_merged)
        if 'prep' in self.pool:
            has_preposition = False
            for sub_child in child.children:
                if sub_child.deprel == 'case':
                    has_preposition = True
                    break
            if has_preposition:
                self.print_triple(node, child, 'prep')