Rusted.

"Isn't she beautiful?" he asked the Lion.

"What?!"

"Quiet down you overgrown cat! I said that she's pretty."

The Tin Man had all the capabilities of viewing something as pretty but no understanding of how to use that information. You see, Tin Man had not heart.

"You can't think those kinds of things." said the Lion.

The girl had paced herself a few steps away from them and was humming some beautiful tune, as was par for her.

Tin Man longed for her and for love and for a heart. But most of all for her.