Illustrate all valid resonance structures for the following:

Three resonance structures of a compound with a hydroxyl group and a pentagonal ring.

Three resonance structures of a compound with a hydroxyl group and a pentagonal ring, showing electron movement.

Three resonance structures of a compound with a hydroxyl group and a pentagonal ring, indicating charge distribution.

Three resonance structures of a compound with a hydroxyl group and a pentagonal ring, illustrating electron delocalization.