Fill in the blank to describe the model.
Circle
Circle
Circle
Circle
Circle
Circle
Circle
Circle
Circle
Circle
Circle
Circle
Circle
Circle
Circle
Circle
Circle
Circle
Circle
Circle
Circle
Circle
Circle
Circle
Circle
Circle
Circle
Circle
Circle
Circle
Circle
Circle
Circle
Circle
Circle
Circle
Circle
Circle
Circle
Circle
The model has 30 dots with
10 dots
in each group.
There are equal groups of dots.
ref_doc_title.

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