Question: This New Hampshire park, which originally opened as a trolley park with botanical gardens and is run by a few local families, is located in which town that has about a population of 29,000 as of 2010?
Sentence (from "Salem, New Hampshire"): Salem is a marketing and distributing center north of Boston, with a major amusement attraction, Canobie Lake Park, and a large shopping mall, the Mall at Rockingham Park.
Relevant evidence: No