( ( These ( two ships ) ) ( ( ( facilitate ( ( the ( ` ( seabasing ' ) ) ) ( of ( an ( amphibious ( landing force ) ) ) ) ) ) ( by ( acting ( as ( ( a ( floating ( base ( or ( transfer station ) ) ) ) ) ( that ( can ( be ( prepositioned ( off ( the ( target area ) ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT These) (CD two) (NNS ships)) (VP (VBP facilitate) (NP (NP (DT the) (`` `) (NN seabasing) ('' ')) (PP (IN of) (NP (DT an) (JJ amphibious) (NN landing) (NN force)))) (PP (IN by) (S (VP (VBG acting) (PP (IN as) (NP (NP (DT a) (JJ floating) (NN base) (CC or) (NN transfer) (NN station)) (SBAR (WHNP (WDT that)) (S (VP (MD can) (VP (VB be) (VP (VBN prepositioned) (PP (IN off) (NP (DT the) (NN target) (NN area)))))))))))))) (. .)))
These two ships facilitate the 'seabasing' of an amphibious landing force by acting as a floating base or transfer station that can be prepositioned off the target area.
(ROOT (S (SBAR (IN If) (S (NP (DT the) (JJ buoyant) (NN force)) (VP (VBZ is) (ADJP (ADJP (JJR greater)) (PP (IN than) (NP (NP (DT the) (NN force)) (PP (IN of) (NP (NN gravity)))))) (S (VP (VBG acting) (PP (IN on) (NP (DT a) (NN ship)))))))) (, ,) (NP (PRP it)) (VP (MD will) (VP (VB float))) (. .)))
If the buoyant force is greater than the force of gravity acting on a ship, it will float.