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.

bici bici or bicibici muhallebisi is a turkish dessert.
bici bici

a nature reserve (preserve or (national/nature) conserve) is a protected area.
nature reserve

noureddine morceli (born february 28, 1970 in ténès, chlef province) is a retired algerian athlete.

noureddine morceli