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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 check_building(self, token):
 """ Building name check. If we have leftover and everything else is set, probably building names. Allows for multi word building names. """

        if self.street and self.house_number:
            if not self.building:
                self.building = self._clean(token)
            else:
                self.building = self._clean(token + ' ' + self.building)
            return True
        return False