This blend is obtained by compounding one vertical aligned pip at each of the lacing squares of a single horizontal aligned pip, thereby blending out those 5 squares.

Incidence matrix

20  *  * |  1  1  1  0 0 0 |  1  1  1 0  polar [42,5]
 * 10  * |  0  2  0  2 1 0 |  2  0  2 1  tropal [4,5/4,4,52]
 *  * 10 |  0  0  2  0 0 1 |  0  2  1 0  equatorial [42,5]
---------+-----------------+-----------
 2  0  0 | 10  *  *  * * * |  1  1  0 0
 1  1  0 |  * 20  *  * * * |  1  0  1 0
 1  0  1 |  *  * 20  * * * |  0  1  1 0
 0  2  0 |  *  *  * 10 * * |  1  0  0 1  horizontal
 0  2  0 |  *  *  *  * 5 * |  0  0  2 0  vertical
 0  0  2 |  *  *  *  * * 5 |  0  2  0 0
---------+-----------------+-----------
 2  2  0 |  1  2  0  1 0 0 | 10  *  * *  {4}
 2  0  2 |  1  0  2  0 0 1 |  * 10  * *  {4}
 2  2  1 |  0  2  2  0 1 0 |  *  * 10 *  {5}
 0  5  0 |  0  0  0  5 0 0 |  *  *  * 2  {5}