tube-network-schema.gql

# Copyright 2020 Grakn Labs
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

define

identifier sub attribute,
	value string;
naptan-id sub attribute,
	value string;
name sub attribute,
	value string;
lat sub attribute,
	value double;
lon sub attribute,
	value double;
duration sub attribute,
	value double;
distance sub attribute,
	value double;

station sub entity,
	has naptan-id,
	has name,
	has lat,
	has lon,
	plays stop,
	plays beginning,
	plays end,
	plays origin,
	plays destination,
	plays contained-station;

tube-line sub entity,
	has name,
	plays route-operator;

route-section sub entity,
	has identifier,
	has duration,
	plays section,
	plays service;

# Try using this sentence to formulate the structure of a relation:
# A <relation> has a <role> in the form of a <subject> (<subject> is any concept, which could be an entity, relation, or attribute)
# For example: a route has a stop in the form of a station

route sub relation,
	has identifier,
	relates section,
	relates stop,
	relates origin as stop,
	relates destination as stop,
	relates route-operator;

tunnel sub relation,
	has identifier,
	has distance,
	relates beginning,
	relates end,
	relates service;

zone sub relation,
	has name,
	relates contained-station;