Copy following code into your SQL Editor and execute it.
SET SCHEMA "SKIING";
--Populate NODES
INSERT INTO "NODES" VALUES (1, 'Pinzolo', 'TRUE', '') ;
INSERT INTO "NODES" VALUES (2, 'Pra Rodont', '', 'TRUE') ;
INSERT INTO "NODES" VALUES (3, 'Dos Del Sabion', '', 'TRUE') ;
INSERT INTO "NODES" VALUES (4, 'Tulot', 'TRUE', '') ;
INSERT INTO "NODES" VALUES (5, 'Malga Ciocia', '', 'TRUE') ;
INSERT INTO "NODES" VALUES (6, 'Malga Ciocia Up', '', '') ;
INSERT INTO "NODES" VALUES (7, 'Zapel', '', '') ;
INSERT INTO "NODES" VALUES (8, 'Zapel Down', '', '') ;
INSERT INTO "NODES" VALUES (9, 'Grual', '', '') ;
INSERT INTO "NODES" VALUES (10, 'Mte Grual', '', '') ;
INSERT INTO "NODES" VALUES (11, 'Malga Grual', '', '') ;
INSERT INTO "NODES" VALUES (12, 'Fossadei', '', '') ;
INSERT INTO "NODES" VALUES (13, 'Puza Daifo', '', '') ;
INSERT INTO "NODES" VALUES (14, 'Plaza', '', '') ;
INSERT INTO "NODES" VALUES (15, 'Colarin', 'TRUE', '') ;
--Populate EDGES
INSERT INTO "EDGES" VALUES (61, 1755, '', 1, 2, 'lift', 'open') ;
INSERT INTO "EDGES" VALUES (62, 1718, '', 2, 3, 'lift', 'open') ;
INSERT INTO "EDGES" VALUES (60, 2453, '', 4, 5, 'lift', 'open') ;
INSERT INTO "EDGES" VALUES (63, 123, '', 12, 2, 'lift', 'open') ;
INSERT INTO "EDGES" VALUES (64, 1050, '', 12, 6, 'lift', 'open') ;
INSERT INTO "EDGES" VALUES (65, 1041, '', 8, 7, 'lift', 'open') ;
INSERT INTO "EDGES" VALUES (66, 365, '', 9, 7, 'lift', 'open') ;
INSERT INTO "EDGES" VALUES (67, 1312, '', 11, 3, 'lift', 'open') ;
INSERT INTO "EDGES" VALUES (68, 360, '', 9, 10, 'lift', 'open') ;
INSERT INTO "EDGES" VALUES (69, 1365, '', 13, 10, 'lift', 'open') ;
INSERT INTO "EDGES" VALUES (70, 1223, '', 14, 13, 'lift', 'open') ;
INSERT INTO "EDGES" VALUES (71, 1151, '', 15, 14, 'lift', 'open') ;
INSERT INTO "EDGES" VALUES (100, 2600, 'black', 5, 4, 'run', 'open') ;
INSERT INTO "EDGES" VALUES (101, 3100, 'red', 3, 2, 'run', 'open') ;
INSERT INTO "EDGES" VALUES (102, 2500, 'black', 3, 2, 'run', 'open') ;
INSERT INTO "EDGES" VALUES (103, 2000, 'black', 3, 9, 'run', 'open') ;
INSERT INTO "EDGES" VALUES (104, 2100, 'red', 3, 9, 'run', 'open') ;
INSERT INTO "EDGES" VALUES (105, 1200, 'red', 9, 11, 'run', 'open') ;
INSERT INTO "EDGES" VALUES (106, 2000, 'red', 7, 11, 'run', 'open') ;
INSERT INTO "EDGES" VALUES (107, 1800, 'red', 7, 8, 'run', 'open') ;
INSERT INTO "EDGES" VALUES (108, 700, 'red', 7, 5, 'run', 'open') ;
INSERT INTO "EDGES" VALUES (1108, 1000, 'red', 5, 8, 'run', 'open') ;
INSERT INTO "EDGES" VALUES (109, 1900, 'blue', 6, 2, 'run', 'open') ;
INSERT INTO "EDGES" VALUES (110, 200, 'blue', 2, 12, 'run', 'open') ;
INSERT INTO "EDGES" VALUES (111, 700, 'blue', 10, 9, 'run', 'open') ;
INSERT INTO "EDGES" VALUES (112, 1500, 'red', 10, 13, 'run', 'open') ;
INSERT INTO "EDGES" VALUES (113, 700, 'black', 3, 5, 'run', 'open') ;
INSERT INTO "EDGES" VALUES (114, 600, 'blue', 6, 2, 'run', 'open') ;
INSERT INTO "EDGES" VALUES (116, 2100, 'red', 3, 9, 'run', 'open') ;
INSERT INTO "EDGES" VALUES (117, 2300, 'black', 12, 4, 'run', 'open') ;
INSERT INTO "EDGES" VALUES (118, 200, 'blue', 6, 5, 'run', 'open') ;