Generate a topic word for the given sentence. A topic word is usually the name of a person, place, animal, concept or object the sentence is focusing on.

[EX Q]: the bumblebee bat ("craseonycteris thonglongyai"), also known as kitti's hog-nosed bat, is an endangered species of bat.
[EX A]: bumblebee bat

[EX Q]: lori wilson (february 15, 1937 – january 30, 2019) was an american lawyer and politician.
[EX A]: lori wilson

[EX Q]: alpine lakes are lakes or reservoirs at high altitudes, usually over 5,000 feet (1524 metres) above sea level, or above the tree line.
[EX A]:
alpine lake