Men and women
-- negative polarity -- positive polarity
in the real world
Roads are an example of intersecting lines in the real world.
Scales or balances.
Examples of horizontal lines in the real world include the horizon where the sky meets the land or sea, the straight line of a calm lake's surface, the boundary between the wall and floor in a room, and the straight line of a ruler placed flat on a table. Horizontal lines are parallel to the horizon and perpendicular to vertical lines.
A Jarlid
Balls
McDonalds Arches
On Batman(donnanonanon!)
normal_distribution
Railroad tracks, the edges of a book, and the lines on a ruled notebook paper are real-world examples of parallel lines.