Rome Metro Line B
E831885
Rome Metro Line B is one of the main lines of the Rome Metro system, running through central and southern parts of the city and serving key sites such as the Colosseum.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Rome Metro Line B canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T9956471 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Rome Metro Line B Context triple: [Colosseo metro station, line, Rome Metro Line B]
-
A.
Rome Metro network
The Rome Metro network is the rapid transit system serving Italy’s capital, consisting of multiple underground and suburban rail lines that connect central Rome with its surrounding districts and transport hubs.
-
B.
Genoa Metro Line 1
Genoa Metro Line 1 is the primary light metro line serving the Italian city of Genoa, connecting key central and suburban areas through an underground rapid transit system.
-
C.
Milan Metro Line 1
Milan Metro Line 1 is the oldest and one of the main rapid transit lines in Milan, Italy, running primarily on an east–west axis and serving key commercial and exhibition areas of the city.
-
D.
Turin Metro
The Turin Metro is a fully automated, driverless rapid transit system serving the city of Turin, Italy.
-
E.
Milan Metro Line 2
Milan Metro Line 2 is one of the main rapid transit lines in Milan, Italy, running in a predominantly northeast–southwest direction and serving key residential and commercial areas across the city.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Rome Metro Line B Target entity description: Rome Metro Line B is one of the main lines of the Rome Metro system, running through central and southern parts of the city and serving key sites such as the Colosseum.
-
A.
Rome Metro network
The Rome Metro network is the rapid transit system serving Italy’s capital, consisting of multiple underground and suburban rail lines that connect central Rome with its surrounding districts and transport hubs.
-
B.
Genoa Metro Line 1
Genoa Metro Line 1 is the primary light metro line serving the Italian city of Genoa, connecting key central and suburban areas through an underground rapid transit system.
-
C.
Milan Metro Line 1
Milan Metro Line 1 is the oldest and one of the main rapid transit lines in Milan, Italy, running primarily on an east–west axis and serving key commercial and exhibition areas of the city.
-
D.
Turin Metro
The Turin Metro is a fully automated, driverless rapid transit system serving the city of Turin, Italy.
-
E.
Milan Metro Line 2
Milan Metro Line 2 is one of the main rapid transit lines in Milan, Italy, running in a predominantly northeast–southwest direction and serving key residential and commercial areas across the city.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf | rapid transit line ⓘ |
| connectsWith | Rome Metro Line A NERFINISHED ⓘ |
| country | Italy ⓘ |
| electrification | overhead line ⓘ |
| hasBranch | Rome Metro Line B1 NERFINISHED ⓘ |
| hasBranchOpening | Rome Metro Line B1 opened 2012 NERFINISHED ⓘ |
| interchangeStation | Termini station NERFINISHED ⓘ |
| isOneOf | main lines of the Rome Metro ⓘ |
| lineColor | blue ⓘ |
| locatedIn |
Italy
ⓘ
Lazio ⓘ Rome ⓘ |
| opened | 1955 ⓘ |
| operator | ATAC NERFINISHED ⓘ |
| partOf | Rome Metro NERFINISHED ⓘ |
| servesArea |
central Rome
ⓘ
southern Rome ⓘ |
| servesLandmark |
Basilica of Saint Paul Outside the Walls
NERFINISHED
ⓘ
Colosseum NERFINISHED ⓘ EUR district NERFINISHED ⓘ |
| servesStation |
Annibaliano station
NERFINISHED
ⓘ
Bologna station NERFINISHED ⓘ Castro Pretorio station NERFINISHED ⓘ Cavour station NERFINISHED ⓘ Colosseo station NERFINISHED ⓘ Conca d'Oro station NERFINISHED ⓘ EUR Fermi station NERFINISHED ⓘ EUR Magliana station NERFINISHED ⓘ Garbatella station NERFINISHED ⓘ Jonio station NERFINISHED ⓘ Libia station NERFINISHED ⓘ Marconi station NERFINISHED ⓘ Monti Tiburtini station NERFINISHED ⓘ Piramide station NERFINISHED ⓘ Policlinico station NERFINISHED ⓘ Ponte Mammolo station NERFINISHED ⓘ Quintiliani station NERFINISHED ⓘ San Paolo Basilica station NERFINISHED ⓘ Santa Maria del Soccorso station NERFINISHED ⓘ Termini station NERFINISHED ⓘ |
| system | Rome Metro NERFINISHED ⓘ |
| terminus |
Jonio station
NERFINISHED
ⓘ
Laurentina station NERFINISHED ⓘ Rebibbia station NERFINISHED ⓘ |
| trackGauge | standard gauge ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Rome Metro Line B Description of subject: Rome Metro Line B is one of the main lines of the Rome Metro system, running through central and southern parts of the city and serving key sites such as the Colosseum.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.