instruction:
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.
question:
veronika marchenko is a russian activist.
answer:
veronika marchenko


question:
love's labour's lost is a comedy play by william shakespeare which was written between 1588 and 1597.
answer:
love's labour's lost


question:
a group of his hostages nicknamed him "jihadi john" since he was part of a four-person terrorist cell with british accents whom they called "the beatles".
answer:

jihadi john