s::=np vp
np::=pn | det adjp n | det n
det::=the | that | a | some
n::=goat | apple | velociraptor | pan | dog
pn::=John | The Space Needle | Helene | XBox | Seattle
vp::= iv | tv np
iv::=explodes | eats | sleeps | contemplates | speaks | showers
tv::=blows up | tickles | washes | gives a massage to
adjp::=adj adjp | adj
adj::=fuzzy | stinky | slippery | hot | moist | hairy