Split verbs

In some cases the text has diverged from the original Brown corpus as split verbs have been combined into a single lemma. For example "fixed it up" would have been lemmatized as "fix_up it".

We should update the annotation scheme to cope with this.

The issue names no files, tests, or entry points; start by locating the annotation scheme and the code or data that produces lemmas. Compare the split-verb example with the Brown corpus, then verify that the revised scheme preserves the intended separate verb and particle annotations.

Written by the indexing model from the issue text.