CONCEPTS: country, visit, world

GEN: the hardest countries in the world to visit

CONCEPTS: cheese, feature, pizza

GEN: The pizza features lots of mozzarella cheese on top..

CONCEPTS: hive, keeper, open

GEN: A bee keeper slowly opens the cover to his hive to show us the bees.

CONCEPTS: day, sit, station

GEN:
Trains sit at a station on a sunny day.