Task: Question Answering
Input (English): My friend , Tom , had moved into a new house , and decided to plant a small tree to help make his yard look better . He had been advised by a tree expert , that the best time to plant it was in April or May . So about several weeks after Tom had moved into his new home , he went ahead to plant the tree in mid April . He first got and checked some maps to make sure he did n't mistakenly end up digging into any telephone or gas lines . Once he found a suitable spot to plant his new tree , Tom took a shovel and began preparing the hole to place it in . Next , he prepared the tree for planting by turning carefully upside down to remove it from the pot it came in . He then gently , placed the tree into the hole . Tom also filled the hole with some compost and manure to help the tree grow better . Once this was done , he filled up the hole completely and watered the tree . Finally , he placed mulch on top and then stopped to admire the beautiful new tree in his yard . 
Question: Why was the tree planted?
Output (English): to improve the looks of the yard