handle more than 2 arguments correctly
allow values in lexical maps to be sequences or vectors
getting fo-ps in better shape
more lexical entries
add fn: (remove-matching-values):

  "Use case is same as remove-top-values, but more general by use of pred: pred is a function that takes a key and a value; if (pred k v) or (pred k @v) is true, remove the kv from the fs."
use: (remove-matching-values) to display semantics
slowly converthing italian lexicon
add some more words
nonexistent words return nothing from lookup
make fo-ps easier to use from here