'In a building:<br />tread, rise, railing, newel post'
stairways (or steps)
PARTS OF THE WHOLE: In a building:<br />tread, rise, railing, newel post
In a building:<br />tread, rise, railing, newel post
In a building:<br />tread, rise, railing, newel post
PARTS OF THE WHOLE
stairways or steps
PARTS OF THE WHOLE