question: In terms of length , how long is the East Coast Greenway trail if it stretches from Maine to Florida ?
answer: 3,000-mile
turker_answer: If the East Coast Greenway trail stretches from Maine to Florida , it is a 3,000-mile trek .
rule-based: In terms of length , the East Coast Greenway trail if it stretches from Maine to Florida is 3,000-mile .