# NOT RUN {
canis <- rotl::tnrs_match_names("canis")
canis_taxonomy <- rotl::taxonomy_subtree(canis$ott_id)
my_ott_ids <- extract_ott_ids(x = canis_taxonomy$tip_label)
# Get the problematic elements from input
canis_taxonomy$tip_label[attr(my_ott_ids, "na.action")]
# }
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