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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def get_complexes(self):
 """Extract INDRA Complex Statements from BEL. The SPARQL query used to extract Complexes looks for ComplexAbundance terms and their constituents. This pattern is distinct from other patterns in this processor in that it queries for terms, not full statements. Examples: complexAbundance(proteinAbundance(HGNC:PPARG), proteinAbundance(HGNC:RXRA)) decreases biologicalProcess(MESHPP:"Insulin Resistance") """

        q_cmplx = prefixes + """
            SELECT ?complexTerm ?childName ?child ?stmt
            WHERE {
                {
                {?stmt belvoc:hasSubject ?complexTerm}
                UNION
                {?stmt belvoc:hasObject ?complexTerm .}
                UNION
                {?stmt belvoc:hasSubject ?term .
                ?term belvoc:hasChild ?complexTerm .}
                UNION
                {?stmt belvoc:hasObject ?term .
                ?term belvoc:hasChild ?complexTerm .}
                }
                ?complexTerm a belvoc:Term .
                ?complexTerm a belvoc:ComplexAbundance .
                ?complexTerm belvoc:hasChild ?child .
                ?child belvoc:hasConcept ?childName .
            }
        """
        # Run the query
        res_cmplx = self.g.query(q_cmplx)

        # Store the members of each complex in a dict of lists, keyed by the
        # term for the complex
        cmplx_dict = collections.defaultdict(list)
        cmplx_ev = {}
        for stmt in res_cmplx:
            stmt_uri = stmt[3]
            ev = self._get_evidence(stmt_uri)
            for e in ev:
                e.epistemics['direct'] = True
            cmplx_name = term_from_uri(stmt[0])
            cmplx_id = stmt_uri + '#' + cmplx_name
            child = self._get_agent(stmt[1], stmt[2])
            cmplx_dict[cmplx_id].append(child)
            # This might be written multiple times but with the same
            # evidence
            cmplx_ev[cmplx_id] = ev
        # Now iterate over the stored complex information and create binding
        # statements
        for cmplx_id, cmplx_list in cmplx_dict.items():
            if len(cmplx_list) < 2:
                msg = 'Complex %s has less than 2 members! Skipping.' % \
                       cmplx_name
                logger.warning(msg)
            else:
                self.statements.append(Complex(cmplx_list,
                                               evidence=cmplx_ev[cmplx_id]))