sentences:  Like any typical late-war FSB, most of Mary Ann's bunkers were made from converted metal shipping containers known as conexes.In addition to the conex bunkers, Mary Ann had over thirty assorted structures (hootches, sandbagged bunkers, and other makeshift structures).The southeast end of FSB Mary Ann housed the Battalion Tactical Operations Center (B-TOC) and Company Command Post (CP), both located next to a small VIP helipad.