1592953409000 1312632483000 term-49543 1616541509201 1312632543000 1616290465292 adlib fitz-online adlib-term-49543 d2e36474-e925-383e-92d3-e8bc29ebb603 2 1 structures, shell structures, shell term reference term-49549 adlib-term-49549 c89c8902-8d3d-33ee-b924-5646b49966b7 shell structures