I had an additional reason for that belief in the fact that all the cups found contained sugar, which Mademoiselle Cynthia never took in her coffee. 
( I ( ( ( had ( ( an ( additional reason ) ) ( for ( ( that belief ) ( in ( the fact ) ) ) ) ) ) ( that ( ( all ( the cups ) ) ( found ( ( ( contained sugar ) , ) ( which ( ( Mademoiselle Cynthia ) ( never ( took ( in ( her coffee ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (PRP I)) (VP (VBD had) (NP (NP (DT an) (JJ additional) (NN reason)) (PP (IN for) (NP (NP (DT that) (NN belief)) (PP (IN in) (NP (DT the) (NN fact)))))) (SBAR (IN that) (S (NP (PDT all) (DT the) (NNS cups)) (VP (VBD found) (NP (NP (VBN contained) (NN sugar)) (, ,) (SBAR (WHNP (WDT which)) (S (NP (NNP Mademoiselle) (NNP Cynthia)) (ADVP (RB never)) (VP (VBD took) (PP (IN in) (NP (PRP$ her) (NN coffee))))))))))) (. .)))
Mademoiselle Cynthia always took lots of sugar in her coffee.
( ( Mademoiselle Cynthia ) ( always ( ( ( took ( lots ( of sugar ) ) ) ( in ( her coffee ) ) ) . ) ) )
(ROOT (S (NP (NNP Mademoiselle) (NNP Cynthia)) (ADVP (RB always)) (VP (VBD took) (NP (NP (NNS lots)) (PP (IN of) (NP (NN sugar)))) (PP (IN in) (NP (PRP$ her) (NN coffee)))) (. .)))