A sentence for wane?

The jar full of cookies waned down to mere crumbs in a few days.

During the time at sea, the sailors saw the moon wax and wane three times.

"Wanna" isn't a real word, although it is often used in "text talk" or just said because it is easier than saying the real one, which is "want to". Anyways, a sentence with "wanna" in it could...

Wane means to decrease in strength, time, or intensity..... so -The daylight waned and the night came on. Colonialism began to wane after world war 2. Summer is waning.

The building Wanes everytime I see it.