Solution: Select top nouns

gistfile1.txt

tl = vol.tokenlist(pages=False)
just_nouns = tl.loc[(slice(None), slice(None), ["NN", "NNS"]),]
top_nouns = just_nouns.sort_values('count', ascending=False)
top_nouns.head(5)

# OUTPUT:
#                     count
# section token  pos       
# body    doctor NN      83
#         time   NN      80
#         day    NN      73
#         eyes   NNS     61
#         way    NN      57
  
# NOTE
# Because each step returns a DataFrame, it is possible to `chain` methods.
# Though inadvisable dense in this case, the solution above is possible to write like this:

vol.tokenlist(pages=False).loc[(slice(None), slice(None), ["NN", "NNS"]),].sort_values('count', ascending=False).head(5)