def Check_Reverse_Key(self, s):
        house_key = ''
        road_key = ''
        block_key = ''
        sector_key = ''
        goli_key = ''
        # s='oaishf ka/4    no house las, 4 number   road block no 5'
        pattern_house = re.search('(ka)*[a-z]*\d*/*[a-z]*(ka)*\d+\s+(no|number)\s*[.]*\s+house\s+', s)
        pattern_road = re.search('(ka)*[a-z]*\d*/*[a-z]*(ka)*\d+\s+(no|number)\s*[.]*\s+road\s+', s)
        pattern_goli = re.search('(ka)*[a-z]*\d*/*[a-z]*(ka)*\d+\s+(no|number)\s*[.]*\s+goli\s+', s)
        pattern_lane = re.search('(ka)*[a-z]*\d*/*[a-z]*(ka)*\d+\s+(no|number)\s*[.]*\s+lane\s+', s)
        pattern_line = re.search('(ka)*[a-z]*\d*/*[a-z]*(ka)*\d+\s+(no|number)\s*[.]*\s+line\s+', s)
        pattern_block = re.search('(((ka)*[a-z]*\d*/*[a-z]*(ka)*\d+\s+(no|number)\s*[.]*block)|((\s+[a-z]))\s+block\s+)', s)
        pattern_sector = re.search('(ka)*[a-z]*\d*/*[a-z]*(ka)*\d+\s+(no|number)\s*[.]*\s+sector\s+', s)
        pattern_road_feet = re.search('\s+\d+\s*(feet|(ft[.]*|foot)\s+)', s)
        if pattern_road_feet:
            road_feet = re.search("\d+", pattern_road_feet.group())
            # print(road_feet.group())
            self.reverse_road_pattern = True
            self.reverse_pattern['road'] = str(road_feet.group())+" feet road"
        if pattern_house:
            house_key = pattern_house.group().split()[0]
            #print("house "+house_key)
            self.reverse_house_pattern = True
            self.reverse_pattern['house'] = house_key
        if pattern_road:
            road_key = pattern_road.group().split()[0]
            self.reverse_road_pattern = True
            #print("road "+road_key)
            self.reverse_pattern['road'] = "road "+road_key
        if pattern_goli:
            goli_key = pattern_goli.group()
            self.reverse_goli_pattern = True
            #print("goli "+goli_key)
            self.reverse_pattern['goli'] = goli_key
        if pattern_lane:
            lane_key = pattern_lane.group().split()[0]
            self.reverse_lane_pattern = True
            #print("lane "+lane_key)
            self.reverse_pattern['lane'] = "lane "+lane_key
        if pattern_line:
            line_key = pattern_line.group().split()[0]
            self.reverse_line_pattern = True
            #print("lane "+lane_key)
            self.reverse_pattern['line'] = "line "+line_key
        if pattern_block:
            block_key = pattern_block.group().split()[0]
            self.reverse_block_pattern = True
            #print("block "+block_key)
            self.reverse_pattern['block'] = block_key
        if pattern_sector:
            sector_key = pattern_sector.group().split()[0]
            self.reverse_sector_pattern = True
            #print("sector "+sector_key)
            self.reverse_pattern['sector'] = "sector "+sector_key
        return None