28370
 Rockville , a five-square-mile city with about 57,000 residents , according to census figures for 2005 , is about 30 minutes from the center of Washington on the Washington Metro , the rapid transit system in the city and suburbs in Maryland and Virginia . 
 location contains: Maryland, Rockville
Given a phrase that describes the relationship between two words, extract the words and the lexical relationship between them. The output format should be "relation1: word1, word2; relation2: word3, word4". 
Option: nationality, country capital, place of death, children, location contains, place of birth, place lived, administrative division of country, country of administrative divisions, company, neighborhood of, company founders 
Text: {0} 
Answer:
 location contains: Maryland, Rockville