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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 bel_process_belrdf():
 """Process BEL RDF and return INDRA Statements."""

    if request.method == 'OPTIONS':
        return {}
    response = request.body.read().decode('utf-8')
    body = json.loads(response)
    belrdf = body.get('belrdf')
    bp = bel.process_belrdf(belrdf)
    return _stmts_from_proc(bp)