With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: David Koepp writes.
text_B: The South Dade Rail Trail -LRB- SDRT -RRB- is a rail trail , run by Miami-Dade County Parks and Recreation , that follows the old Florida East Coast Railway rail corridor for 20.5 miles , from Miami to Homestead in South Florida , traversing a diversity of urban , suburban and semi-rural environments .. rail trail. rail trail. Miami-Dade County. Miami-Dade County. Florida East Coast Railway. Florida East Coast Railway. Trail enthusiasts can enjoy walking , jogging , bicycling , inline skating and other non-motorized recreational uses from dawn to dusk , year round .. There are several local businesses , parks , and neighborhoods throughout the entirety of the trail .. One can experience paved roads from start to finish through urban neighborhoods to more swap like areas .. Palm trees line parts of the trail 's southern end .. This trail forms a section of the East Coast Greenway , a 3000-mile system of trails connecting Maine to Florida .. East Coast Greenway. East Coast Greenway
not_related.