This fellow is flying a hot air balloon and suddenly realizes he is lost.
( ( This fellow ) ( ( ( ( ( is ( flying ( a ( hot ( air balloon ) ) ) ) ) and ) suddenly ) ( realizes ( he ( is lost ) ) ) ) . ) )
(ROOT (S (NP (DT This) (NN fellow)) (VP (VP (VBZ is) (VP (VBG flying) (NP (DT a) (JJ hot) (NN air) (NN balloon)))) (CC and) (ADVP (RB suddenly)) (VP (VBZ realizes) (SBAR (S (NP (PRP he)) (VP (VBZ is) (VP (VBN lost))))))) (. .)))
This fellow is flying a hot air balloon and knows of his own whereabouts.
( ( This fellow ) ( ( ( ( is ( flying ( a ( hot ( air balloon ) ) ) ) ) and ) ( knows ( of ( his ( own whereabouts ) ) ) ) ) . ) )
(ROOT (S (NP (DT This) (NN fellow)) (VP (VP (VBZ is) (VP (VBG flying) (NP (DT a) (JJ hot) (NN air) (NN balloon)))) (CC and) (VP (VBZ knows) (PP (IN of) (NP (PRP$ his) (JJ own) (NN whereabouts))))) (. .)))