_:n2184507bf19e45abbbbe1613badb03d4xb1
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.jiskha.com/questions/1550241/a-uniform-beam-ab-of-mass-84-78-kg-rest-against-the-smooth-wall-at-a-and-the-rough>