(text/identifier: block_a, shape: rectangle, size: medium, position: on table at the bottom-left, status: clear)(text/identifier: block_b, shape: rectangle, size: medium, position: held in hand, status: not clear)(text/identifier: block_c, shape: rectangle, size: medium, position: on table at the bottom-center, status: clear)(text/identifier: block_d, shape: rectangle, size: medium, position: on table at the bottom-right, status: clear)(text/identifier: table, shape: large rectangle, size: large and horizontally long, position: base, status: supports blocks a, c, and d)(text/identifier: hand, shape: circle, size: small, position: above the table, status: holding block b)