See this example of "horses" that was separated from the rest of the "horse" instances.
https://github.com/cu-mkp/m-k-manuscript-data/blob/36183c12ba8ae2088aee4cd77c86461bbfde2b98/vocabulary/vocab/json/animal.json#L796
non-uniform encoding of apostrophes, perhaps related to cu-mkp/m-k-manuscript-data#598.
@matthewkumar, can you update what you did to resolve this, then close issue