CONCEPTS: bridge, cross, park, pond, woode

GEN: Two people cross a simple wooden bridge over a pond in a wooded park.

CONCEPTS: pace, slow, turn

GEN: Someone slows her pace and turns around.

CONCEPTS: diagram, label, structure

GEN: this diagram shows the structure of the eye with the major parts labeled .

CONCEPTS: face, force, smile

GEN:
As she faces someone, someone forces an awkward smile.