# Background

:::{figure-md}
![Segmentation](img/segmentation.svg){width=500px align=center}

Figure: From quotations to passages.
:::

The figure above shows the segmentation process which is used to aggregate quotations to form _passages_ by
combining overlapping quotations.  

In the example, there are four scholarly works. Three of which have one quotation and one has two quotations.
_w<sub>1</sub>_ to _w<sub>13</sub>_ refer to arbitrary words. The resulting passage spans from _w<sub>1</sub>_ to _w<sub>10</sub>_. 
_w<sub>11</sub>_ to _w<sub>13</sub>_ are not part of the _passage_ as there are no overlapping quotations. During this
process of forming a passage from quotations, we also generate minimal, non overlapping _segments_.

:::{admonition} Examples
:class: note

Possible scenarios include a passage formed by just one quotation in which case the passage, segment and quotation
are identical. It is also possible that different texts contain the exact same quotation in which case the resulting
passage would be the exact length of the underlying quotations and only have one segment.
:::