PUZZLEBOXX

Compare the bottom two lines.

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Two TRIANGLES, one CIRCLE and one STAR is just one more than two TRIANGLES, one CIRCLE and one SQUARE.  So that means a STAR is one more than a SQUARE.

Now compare the top two lines.

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One CIRCLE, one SQUARE, one STAR and another SQUARE is just one more than one CIRCLE, one SQUARE, one STAR and a TRIANGLE.  So a SQUARE is one more than a TRIANGLE.

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