deal with the subject of love head-on 
(ROOT (S (VP (VB deal) (PP (IN with) (NP (NP (DT the) (NN subject)) (PP (IN of) (NP (NN love))))) (NP (NN head) (HYPH -) (NN on)))))
(ROOT (S (VP (VB ) (PP (IN ) (NP (NP (DT ) (NN )) (PP (IN ) (NP (NN ))))) (NP (NN ) (HYPH ) (NN )))))