tripleset: General Dynamics Electric Boat PARENT_COMPANY General Dynamics
tripleset: American submarine NR-1 BUILDER General Dynamics Electric Boat
annotations.source: webnlg webnlg webnlg
annotations.text: General Dynamics is the parent company of, the General Dynamics Electric Boat Co. which is the builder of the American submarine NR-1. General Dynamics is the parent company of the General Dynamics Electric Boat Co which built the American submarine NR-1. The American submarine NR-1 was built by General Dynamics Electric Boat, the parent company of which, is General Dynamics.