Level_of_light

There is a gradable amount of light in a particular Location. In some cases the Source of light may be indicated instead of the Location. The small print was bearly readable by the light of the very dim torch. Tal flew over the barrier and into the dark tunnel. The negetive LUs in this frame can be used metaphorically to describe time periods which can be characterized as bad or lacking in awareness, as shown in the following examples: The custody of the era brought about a dark period during which the written word was forgotten and art had disappeared. Clinton is shrewd to solidify political support during these dark days.