Table for the 4 triples with object "Britse zone " on predicate wpl_opm sorted by label

Subject	Predicate
?:Kaart_WE3001	?:wpl_opm
?:Kaart_WE3772	?:wpl_opm
?:Kaart_WE3792	?:wpl_opm
?:Kaart_WE3906	?:wpl_opm