Current State ID: 9
Current State Description: There are four blocks: a, b, c, and d. The hand is empty. Block a is on the table and clear. Block b is on the table and clear. Block c is on the table and clear. Block d is on the table and clear.

Child State ID: 14
Action Taken: pick-up(c)
State Description: The hand is holding block 'c'. Blocks a, b, and d are on the table and clear. Block c is no longer on the table or clear.

Child State ID: 16
Action Taken: pick-up(a)
State Description: The hand is holding block 'a'. Block 'a' is no longer on the table and not clear. Blocks b, c, and d remain on the table and clear.

