A complex object class can have single or multiple components.

If the result is true, new object classes are recognised.

"The technique may be restricted to a certain class of biological objects," he said.

That version added representation for users and several other object classes.

And then there's a special class of objects - portraits.

"There is one other possibility, namely that planet hunters have discovered a new class of objects," he said.

Thus, these two definitions lead to mathematically equivalent classes of objects.

It is often characterized by a preoccupation with a particular object, class of objects, or situation that one fears.

Almost all standard object classes are supported, and may be referred to in several, highly-intuitive ways.

That unique characteristic does not have an element to its natural identity which allows it to belong to the general class of objects.