and that these two, when combined, give us
We have now to mark the two positive portions, "some are " and "some are ".
The only two compartments, available for Things which are , are No. 9 and No. 10. Of these, No. 9 is already marked as 'empty'; so our red counter must go into No. 10.
Similarly, the only two, available for , are No. 11 and No. 13. Of these, No. 11 is already marked as 'empty'; so our red counter must go into No. 13.
The final result is