<http://webisa.webdatacommons.org/118429446> <http://www.w3.org/ns/prov#wasQuotedFrom> <britannica.com> . <http://webisa.webdatacommons.org/118429446> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/ns/prov#Entity> . <http://webisa.webdatacommons.org/118429446> <http://www.w3.org/ns/prov#value> "The body assumes a series of S-shaped horizontal loops, and each loop pushes against any resistance it can find in the environment, such as rocks, branches, twigs, dust, sand, or pebbles." . <http://webisa.webdatacommons.org/prov/417064659> <http://www.w3.org/ns/prov#wasDerivedFrom> <http://webisa.webdatacommons.org/118429446> .