Parse a concept Label in the format of "concept_id concept_name".
unmerge_label(data, label_col, remove = FALSE)
Other concept format functions:
filter_at_all_strip(),
filter_at_any_strip(),
filter_strip(),
get_strip(),
label_to_strip(),
merge_label(),
merge_strip(),
unbox_label(),
unbox_strip(),
unmerge_strip()