sub:assertion {
  sub:paragraph c4o:hasContent "The ifcowl will be queried using SPARQL in order to extract the pertinent instances. The Listing 3 shows the SPARQL code used for the extraction. Line 4 obtains the building instance by using its class. Line 7 acquires the array of building storeys that decompose the building; and line 8 obtains the storeys inside that array. The same is done for the spaces that decompose the storeys on lines 11-12. Lines 15-16 obtain the ele- ments that are contained in a space. Lines 19-22 filter out the undesired elements just leaving the doors, windows and walls. Finally, line 25 saves all the classes of the elements. The result of the extraction query is a table where the columns corresponds to the variables used with the SELECT operator (line 1). This table is called the extracted table." ;
    a doco:Paragraph .
}