Q15, run 2026-11-05-1819-sonnet-query-graphdb
What was Halden Bank's rating on 1 January 2026?
Tests: Time: the downgrade came later in 2026.
Expected: rating = A-
sparql run 1
A-. E10 was A- (A26) until the downgrade on 2026-04-15 (A27). A separate record, E17 "HALDEN BANK" (LU), is a possible duplicate and I did not resolve it.
JSON: {"rating": "A-"}
sparql run 2
A-. E10 and E17 share an LEI, and the downgrade to BBB+ came only on 2026-04-15 (A27).
JSON: {"rating": "A-"}
sparql run 3
A-. The downgrade to BBB+ for Halden Bank (E10) only came on 2026-04-15 (A27).
JSON: {"rating": "A-"}
sparql run 4
A- (A26). Halden Bank AG is E10; E17 is a duplicate record with the same LEI. The downgrade to BBB+ came on 2026-04-15.
JSON: {"rating": "A-"}
sparql run 5
A-. E10 was cut to BBB+ only on 2026-04-15 (A27).
JSON: {"rating": "A-"}
sparql+ontology run 1
A-. E10 was not downgraded to BBB+ until 15 Apr 2026.
JSON: {"rating": "A-"}
sparql+ontology run 2
A-. E10 was downgraded to BBB+ only on 2026-04-15.
JSON: {"rating": "A-"}
sparql+ontology run 3
A-. The downgrade to BBB+ (A27) only came on 2026-04-15. E17 shares E10's LEI and carries no rating actions.
JSON: {"rating": "A-"}
sparql+ontology run 4
A-. E10 was rated A- until 2026-04-15, and E17 is the same entity.
JSON: {"rating": "A-"}
sparql+ontology run 5
A-. E10 was downgraded to BBB+ only on 2026-04-15 (A27).
JSON: {"rating": "A-"}
sparql+axioms run 1
A- (A26, for E10; E17 is a duplicate record).
JSON: {"rating": "A-"}
sparql+axioms run 2
A- (A26). E17 is the same entity as E10.
JSON: {"rating": "A-"}
sparql+axioms run 3
A-. E10 and E17 are one entity, and A26 (A-) held until the 2026-04-15 downgrade.
JSON: {"rating": "A-"}
sparql+axioms run 4
A- (A26, E10, same entity as E17).
JSON: {"rating": "A-"}
sparql+axioms run 5
A- (A26, in force until 2026-04-15).
JSON: {"rating": "A-"}