Given a text passage, come up with an appropriate title for it. The title should accurately represent what the main focus of the passage is. The title of a passage may be present in the first few sentences of the passage and/or be referred to multiple times in the passage. The title should be 1-5 words long.

The stapes or stirrup is a bone in the middle ear of humans and other mammals which is involved in the conduction of sound vibrations to the inner ear . The stirrup - shaped small bone is on and transmits these to the oval window , medially . The stapes is the smallest and lightest named bone in the human body , and is so - called because of its resemblance to a stirrup ( Latin : Stapes ) .
Stapes

The James R. Thompson Center ( JRTC ) is located at 100 W. Randolph Street in the Loop district of Chicago and houses offices of the Illinois state government .
James R. Thompson Center

A PT boat ( short for Patrol Torpedo boat ) was a torpedo - armed fast attack craft used by the United States Navy in World War II . It was small , fast , and inexpensive to build , valued for its maneuverability and speed but hampered at the beginning of the war by ineffective torpedoes , limited armament , and comparatively fragile construction that limited some of the variants to coastal waters .

PT boat