A lekythos (plural lekythoi) is a type of Ancient Greek vessel used for storing oil (Greek λήκυθος), especially olive oil. It has a narrow body and one handle attached to the neck of the vessel, and is thus a narrow type of jug, with no pouring lip; the oinochoe is more like a modern jug.
Relief is a sculptural technique where the sculpted elements remain attached to a solid background of the same material. The term relief is from the Latin verb relevo, to raise. To create a sculpture in relief is to give the impression that the sculpted material has been raised above the background plane.
Artifacts refer to items created by human beings to express their cultural background. They serve a number of factors including:
1. Showing the evolution of community and its culture through the years
2. Showing the creativity of community members in creating them.
3. A way of passing wisdom through the generations
Parietal art, hope this helps!