Concepts: bear, cub, meadow
A: the cubs of wild brown bear in a summer meadow .
Concepts: arrival, blossom, spring
A: nothing says spring like the arrival of cherry blossom .
Concepts: deliver, game, inning, pitch, pitcher
A: pitcher delivers a pitch in the fourth inning of game
Concepts: explain, magnification, microscope
A:
A man explains how to switch the magnification on a microscope.