## Not run:
# itis_facet(q = "rank:Species", rows = 0, facet.field = "kingdom")$facet_fields
#
# x <- itis_facet(q = "hierarchySoFar:*$Aves$* AND rank:Species AND usage:valid",
# facet.pivot = "nameWInd,vernacular", facet.limit = -1, facet.mincount = 1,
# rows = 0)
# head(x$facet_pivot$`nameWInd,vernacular`)
# ## End(Not run)
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