The baby has learned that only when he is distraught will the parent reliably come to his aid.
( ( The baby ) ( ( has ( learned ( that ( ( only ( when ( he ( is distraught ) ) ) ) ( ( will ( ( the parent ) reliably ) ) ( come ( to ( his aid ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (NN baby)) (VP (VBZ has) (VP (VBN learned) (SBAR (IN that) (S (SBAR (RB only) (WHADVP (WRB when)) (S (NP (PRP he)) (VP (VBZ is) (ADJP (JJ distraught))))) (VP (MD will) (ADVP (NP (DT the) (NN parent)) (RB reliably)) (VP (VB come) (PP (TO to) (NP (PRP$ his) (NN aid))))))))) (. .)))
The baby has learned that the AR-15 is only a semi automatic rifle.
( ( The baby ) ( ( has ( learned ( that ( ( the AR-15 ) ( ( is only ) ( a ( semi ( automatic rifle ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (NN baby)) (VP (VBZ has) (VP (VBN learned) (SBAR (IN that) (S (NP (DT the) (NN AR-15)) (VP (VBZ is) (ADVP (RB only)) (NP (DT a) (JJ semi) (JJ automatic) (NN rifle))))))) (. .)))