1056
people with thickened heart valves may need to take antibiotics before some types of dental and surgical procedures because they are at risk of developing an infection on the valve in the heart .
 component whole: valve, heart
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: component whole, NA, instrument agency, member collection, cause effect, entity destination, content container, message topic, product producer, entity origin 
Text: {0} 
Answer:
 component whole: valve, heart