⟨SENTENCE⟩⟶⟨NOUN-PHRASE⟩ ⟨VERB-PHRASE⟩⟨NOUN-PHRASE⟩⟶⟨CMPLX-NOUN⟩∣⟨CMPLX-NOUN⟩ ⟨PREP-PHRASE⟩⟨VERB-PHRASE⟩⟶⟨CMPLX-VERB⟩∣⟨CMPLX-VERB⟩ ⟨PREP-PHRASE⟩⟨PREP-PHRASE⟩⟶⟨PREP⟩ ⟨CMPLX-NOUN⟩⟨CMPLX-NOUN⟩⟶⟨ARTICLE⟩ ⟨NOUN⟩⟨CMPLX-VERB⟩⟶⟨VERB⟩∣⟨VERB⟩ ⟨NOUN-PHRASE⟩⟨ARTICLE⟩⟶a∣the⟨NOUN⟩⟶boy∣girl∣flower⟨VERB⟩⟶touches∣likes∣sees⟨PREP⟩⟶with