6020
His father was the architect John Mead Howells , and his grandfathers were Horace White , the journalist , and William Dean Howells , the novelist and literary critic .
 children: William Dean Howells, John Mead Howells
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: ethnicity, place lived, geographic distribution, company industry, country of administrative divisions, administrative division of country, location contains, person of company, profession, ethnicity of people, company shareholder among major shareholders, sports team of location, religion, neighborhood of, company major shareholders, place of death, nationality, children, company founders, company founded place, country of capital, company advisors, sports team location of teams, place of birth 
Text: {0} 
Answer:
 children: William Dean Howells, John Mead Howells