This function retrieves broader/narrower relationships and constructs a hierarchical structure.
Examples
hierarchy_df <- fetch_profession_hierarchy("http://urn.fi/URN:NBN:fi:au:mts:m3357")
print(hierarchy_df)
#> # A tibble: 1 × 3
#> child child_label parent
#> <chr> <chr> <chr>
#> 1 http://urn.fi/URN:NBN:fi:au:mts:m3357 NA NA