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: thalassaemia (or thalassemia) is a genetic disorder of the blood which originated in the mediterranean region.

Output: thalassaemia


Input: Consider Input: klaus ebner (born august 8, 1964) is an austrian writer of short stories, essays and poetry, and a translator.

Output: klaus ebner


Input: Consider Input: the archbishop of canterbury is the spiritual leader of the church of england and in the anglican communion the leader of its mother church.


Output: archbishop of canterbury