the pizza is half eaten 
the people are in a restaraunt 
this is a pizza
3 slices of pizza
slices of pizza on a tray
a metal pizza tray
a slice of pizza on a pan
a silver serving trey
couple slices of pizza
slices of pizza on a silver trey
a pizza that has been partially eaten. 
a part of a pizza with everything on it.
pizza on a metal pan
people sitting at tables in an establishment with pizza on the pans