"about math, research papers, science"

"水井里有一只青蛙"

"桶里有只小花猫"

"Sorcerer with a staff of wind"

"Ninja with a sword and shield"

"Mythical phoenix in the night sky"

"Fairy in a crystal ball"

"Mythical griffin guarding treasure"

"Wizard with a book of spells"

"Mythical griffin on a cliff"

"Fairy in a flower garden"

"Astronaut planting a flag"