The LOCATION@1 subway and RT system is a rapid transit railway network in LOCATION@1 , LOCATION@2 , LOCATION@3 , operated by the ORGANIZATION@1 -LRB- TTC -RRB- .

The LOCATION@1 subway and ORGANIZATION@2 is the main rapid transit -LRB- RT -RRB- railway system in LOCATION@1 , LOCATION@2 , LOCATION@3 .
