About: http://webisa.webdatacommons.org/217449393

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	So for me i think introduction must be powerful for example by showing an example or making a scenario regarding your topic so that you can make the audience more easier to visualize what you want to talk about.
http://www.w3.org/ns/prov#wasQuotedFrom	blogspot.com