sub:assertion {
  sub:paragraph c4o:hasContent "Nowadays, multi-camera based systems have become a part of our daily life. They can be found in cities, commercial centers, supermarkets, offices, and even in houses. The advances in image sensor technology allow us to have smart cameras, which are low-cost and low-power systems that capture high-level description of a scene and analyze it in real-time [42]. These smart cameras can extract necessary/pertinent information from different images/video by employing different image processing algorithms such as face detection [47], person detection [8], people tracking [13], fall detection [35], object detection [33], etc." ;
    a doco:Paragraph .
}