( ( Conceptual ( change theorists ) ) ( ( use ( ( ( ( ( the ( term ( ` ( conceptions ' ) ) ) ) , ) ( again ( borrowed ( from ( Piaget ( -LRB- ( 1972 -RRB- ) ) ) ) ) ) ) , ) ( to ( describe ( ( mental structures ) ( analogous ( to paradigms ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (JJ Conceptual) (NN change) (NNS theorists)) (VP (VBP use) (S (NP (NP (DT the) (NN term) (`` `) (NN conceptions) ('' ')) (, ,) (VP (ADVP (RB again)) (VBN borrowed) (PP (IN from) (NP (NP (NNP Piaget)) (PRN (-LRB- -LRB-) (NP (CD 1972)) (-RRB- -RRB-))))) (, ,)) (VP (TO to) (VP (VB describe) (S (NP (JJ mental) (NNS structures)) (ADJP (JJ analogous) (PP (TO to) (NP (NNS paradigms))))))))) (. .)))
Conceptual change theorists use the term 'conceptions', again borrowed from Piaget (1972), to describe  mental structures analogous to paradigms.
(ROOT (S (NP (DT The) (NN term) (NN analogous)) (VP (VBZ is) (VP (VBN used) (S (VP (TO to) (VP (VB describe) (NP (NP (NNS structures)) (SBAR (WHNP (WDT that)) (S (VP (VBP are) (ADJP (JJ similar) (PP (IN in) (NP (JJ unrelated) (NNS organisms))))))))))))) (. .)))