Seoul Subway Line 3
Table:
Line 3

Overview
Native name	3호선（三號線）
Sam Hoseon
Status	Operational
Termini

Daehwa
Ogeum

Stations	44
34-Seoul Metro
10-Korail
Service
Type	Rapid transit
System	Seoul Metropolitan Subway
Operator(s)	Seoul Metro & Korail
History
Opened	July 12, 1985
Technical
Line length	57.4 km (35.7 mi)
38.2 km (23.7 mi) Seoul Metro[1]
19.2 km (11.9 mi) Korail[2]
Number of tracks	2

Consulting the table, decide if the statement is entailed, neutral, or refuted by the data. Output only the JSON object {"answer": "YOUR ANSWER"}.

Claim: Seoul Subway Line 3 opened over 30 years ago.

answer: entailed