Given the task definition and input, reply with output. You are given a sentence and a question in the input. The information provided in the sentence should be enough to answer the question. You're expected to write the correct answer. Do not use any facts other than those provided in the sentence.

Sentence: The families of the neighborhood began building the master tree house. 
Question: How did the children get help to build the tree house?

From the families of the neighborhood.