<?xml version="1.0" encoding="UTF-8"?>
<response><unit><id>cdfa3057-b982-4fdd-aa05-ee22d096c2a3</id><parent_id>aa15a376-ce07-449f-bec8-b80ebb2912ab</parent_id><number>4.12.4</number><names>[{"lang":"es","name":"Simplificación de expresiones mediante logaritmos"},{"lang":"en","name":"Using logarithms to simplify expressions"},{"lang":"ca","name":"Simplificació d'expressions mitjançant logaritmes"}]</names><difficulty>7</difficulty><created>7/18/16, 11:43 AM</created><modified>7/18/16, 11:43 AM</modified></unit></response>
