is a major engineering feat of

5 triples
GPTKB property

Random triples
Subject Object
gptkb:Golden_Gate the 20th century
gptkb:Afsluitdijk gptkb:20th_century
gptkb:Canso_Causeway the 20th century
gptkb:Los_Angeles_Aqueduct_system the early 20th century
gptkb:Tokyo_Bay_Aqua-Line the 20th century