preamble: 
property: suite: enum[stable,testing,unstable] = [stable],
 bugs: int = [0],
 description: string = ["no description"]
univ-checksum: 8c6d8b4d0cf7027cd523ad095d6408b4901ac31c

package: car
version: 1
depends: engine, wheel, door, battery
installed: true
description: 4-wheeled, motor-powered vehicle

package: battery
version: 3
provides: huge-battery
installed: true

package: wheel
version: 3
conflicts: wheel
installed: true
suite: testing

package: door
version: 1
conflicts: door
installed: true

package: electric-engine
version: 1
depends: solar-collector | huge-battery
provides: engine
conflicts: engine, electric-engine
installed: true
bugs: 12
