vf_node_title_variants
field_t_subtype
category
vf_node_webs
| title (web) | field_t_title_web | |
|---|---|---|
| https://en.wikipedia.org/wiki/Category:U-boats_commissioned_in_1917 |
vf_node_category-items
| title (item) | ID | |
|---|---|---|
| SM U-31 (SM U-XXXI) | 134969 |
fr_importance