Each table is labeled in the first row with coordinates in terms of depth and count, which both start at 0. Some of the tables have headers in the second row; although in this example these header cells are in fact <th> tags, header cells can be either <th> or <td>. The remaining cells in the table indicate row and column information from that cell, along with the table coordinates: depth,count:row,column. Rows and columns begin at 0 as well, so the table label and headers, if present, will affect these cell coordinates.
In the illustrations of what is extracted from these tables, content in italics is notational in nature; it was not actually extracted from the tables. In particular, whenever headers are used for extraction, the order in which the headers were provided is noted by listing the headers, but the header row is not actually extracted from the target table.
It might be helpful to open a new browser window with this table visible so that the table can be easily examined when scrolling through the examples.