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.

Input: Consider Input: the diplura are a biological order.

Output: diplura


Input: Consider Input: the palaeoptera is the group of primitive (basal) winged insects which do not fold the wings back over the abdomen, as neoptera do.

Output: palaeoptera


Input: Consider Input: almere city fc is a dutch football club.


Output: almere city fc