Richard Bauerls writes interestingly about the recent proliferation of  one-letter words  [XIV, 1; XV, 1].
( ( ( Richard Bauerls ) writes ) ( ( ( interestingly ( about ( ( the ( recent proliferation ) ) ( of ( one-letter words ) ) ) ) ) ( ( ( -LSB- XIV ) , ) ( ( 1 ; ) ( ( XV , ) ( 1 -RSB- ) ) ) ) ) . ) )
(ROOT (SINV (S (NP (NNP Richard) (NNP Bauerls)) (VP (VBZ writes))) (VP (VBD interestingly) (PP (IN about) (NP (NP (DT the) (JJ recent) (NN proliferation)) (PP (IN of) (NP (JJ one-letter) (NNS words)))))) (NP (NP (NNP -LSB-) (NNP XIV)) (, ,) (NP (NP (CD 1)) (: ;) (NP (NP (NNP XV)) (, ,) (NP (CD 1) (NNS -RSB-))))) (. .)))
Richard Bauerls writes about one- and two-letter words. 
( ( Richard Bauerls ) ( ( writes ( about ( one ( - ( and ( two-letter words ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Richard) (NNP Bauerls)) (VP (VBZ writes) (PP (IN about) (NP (NN one) (: -) (CC and) (JJ two-letter) (NNS words)))) (. .)))