gaining most of its unsettling force from the suggested and the unknown 
(ROOT (S (VP (VBG gaining) (NP (NP (JJS most)) (PP (IN of) (NP (PRP$ its) (JJ unsettling) (NN force)))) (PP (IN from) (NP (NP (DT the) (VBN suggested)) (CC and) (NP (DT the) (JJ unknown)))))))
(ROOT (S (VP (VBG ) (NP (NP (JJS )) (PP (IN ) (NP (PRP$ ) (JJ ) (NN )))) (PP (IN ) (NP (NP (DT ) (VBN )) (CC ) (NP (DT ) (JJ )))))))