Question about R-04

[HankAmericanEngine]

Usually, most Plarail track packs include 4 pieces of said track(e.g., four curves, four double curves, four regular straights, four double straights, four double straights, double junctions, etc.), and some include simply two pieces(e.g., single junctions) while others include six(e.g., six half-straights) and even better, nine(nine 1/4 Plarail adapter straights). Mostly, they talk about the track, but the double curves and double straights usually include four red power line pieces.

This pack says "contains 4 pieces" is that a reference to four actual track sections, or two track sections and two electric line supports?

http://www.1999.co.jp/eng/10048778