sentences:  The final 10.9 km section of Line 3 from Shin-Yokohama to Azamino opened on March 18, 1993.The final 7.4 km section of Line 1 from Totsuka to Shōnandai opened on August 28, 1999.All stations began to include alphanumeric codes "B##" just before the start of the 2002 FIFA World Cup, which occurred at the same time as the subway line's 30th anniversary.