question: During what span of 2010 did snowfall remain for a significant amount of time on the ground in Richmond ?
answer: January 30 to February 14
turker_answer: Snowfall remained for a significant amount of time on the ground in Richmond during January 30 to February 14 .
rule-based: Snowfall remained for a significant amount of time on the ground in Richmond during January 30 to February 14 .