CONCEPTS: allow, board, passenger, plane, tarmac

GEN: An tarmac with planes that are allowing passengers to board.

CONCEPTS: bathroom, divide, toilet, wall

GEN: A bathroom contains a toilet and urinal divided by a wall.

CONCEPTS: lightning, scar, tree

GEN: a willow tree scarred by lightning

CONCEPTS: ceiling, grasp, hallway, hand, propel

GEN:
With her free hand, she grasps along pipe running along the ceiling, propelling herself down the hallway.