Can't get id for OneToOne directly.
Can't get id for OneToOne directly.

Phoenix1369/site,monouno/site,Phoenix1369/site,Minkov/site,monouno/site,Minkov/site,DMOJ/site,DMOJ/site,Phoenix1369/site,Minkov/site,monouno/site,DMOJ/site,Phoenix1369/site,monouno/site,DMOJ/site,monouno/site,Minkov/site