Attempt Number: 2
Error Message: Block a is incorrectly marked as clear; it should not be clear as it supports block d.

Diagram Encoding:
(text/identifier: block_a, shape: rectangle, size: medium, position: on block_c, status: clear)(text/identifier: block_b, shape: rectangle, size: medium, position: on table, status: clear)(text/identifier: block_c, shape: rectangle, size: medium, position: on table, status: supports block_a)(text/identifier: block_d, shape: rectangle, size: medium, position: on block_a, status: clear)(text/identifier: table, shape: large rectangle, size: covers all blocks, position: bottom-most, status: supports blocks b, c)(text/identifier: hand, shape: oval, size: small, position: above all, status: empty)

Diagram Code:
None
