9
 The subject is the Old Testament patriarch Abraham and his descendants : Isaac , Abraham 's younger son , born to his wife , Sarah ; and Ishmael , his first-born son , the child of Sarah 's handmaid , Hagar . 
 children: Hagar, Ishmael; children: Abraham, Ishmael; children: Abraham, Isaac
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:
 children: Hagar, Ishmael; children: Abraham, Ishmael; children: Abraham, Isaac