@staticmethod
    def from_production(production, index):
        return TreeEdge(span=(index, index), lhs=production.lhs(),
                        rhs=production.rhs(), dot=0)
Constructor for SOLR index. 
dataset/ETHPy150Open nltk/nltk/nltk/parse/chart.py/TreeEdge.from_production--crossover with--dataset/ETHPy150Open AppScale/appscale/SearchService/solr_interface.py/Index.__init__