by way of a valentine sealed with a kiss 
(ROOT (PP (IN by) (NP (NP (NN way)) (PP (IN of) (NP (NP (DT a) (NN valentine)) (VP (VBN sealed) (PP (IN with) (NP (DT a) (NN kiss)))))))))
(ROOT (PP (IN ) (NP (NP (NN )) (PP (IN ) (NP (NP (DT ) (NN )) (VP (VBN ) (PP (IN ) (NP (DT ) (NN )))))))))