Task: Cell-entity-annotation (source dataset: SemTab2019)

Your task is to annotate a cell in a table, using the DBpedia resource URI that best describes the entity referenced in the cell.
 
No explanation, return the DBpedia entity in JSON format: {"DBpedia entity": "<DBpedia entity>"}. Please note that DBpedia entity URIs are in the format of "http://dbpedia.org/resource/<entity>".

Input Table:
|   row_idx | col0                                | col1                    | col2                      | col3                           |   col4 |
|----------:|:------------------------------------|:------------------------|:--------------------------|:-------------------------------|-------:|
|         1 | Deep artery of the thigh            | Femoral artery          | Profunda femoris vein     | Perforating arteries           |    629 |
|         2 | Common palmar digital arteries      | Superficial palmar arch | Palmar digital veins      | Proper palmar digital arteries |    598 |
|         3 | Common iliac artery                 | Abdominal aorta         | Common iliac vein         | External iliac artery          |    613 |
|         4 | Common carotid artery               | Brachiocephalic artery  | Internal jugular vein     | External carotid artery        |    549 |
|         5 | Brachiocephalic artery              | Aorta                   | Brachiocephalic vein      | Common carotid artery          |    548 |
|         6 | Brachial artery                     | Axillary artery         | Brachial vein             | Radial artery                  |    589 |
|         7 | Axillary artery                     | Subclavian artery       | Axillary vein             | Brachial artery                |    586 |
|         8 | Ascending aorta                     | Left ventricle          | Coronary sinus            | Left coronary artery           |    545 |
|         9 | Aortic bifurcation                  | Abdominal aorta         | Inferior vena cava        | Common iliac arteries          |    613 |
|        10 | Aortic arch                         | Ascending aorta         | Inferior vena cava        | Brachiocephalic artery         |    547 |
|        11 | Anterior tibial artery              | Popliteal artery        | Anterior tibial vein      | Dorsalis pedis artery          |    634 |
|        12 | Anterior inferior cerebellar artery | Basilar artery          | Inferior cerebellar veins | Labyrinthine artery            |    580 |
|        13 | Anterior ethmoidal artery           | Ophthalmic artery       | Ethmoidal veins           | Anterior meningeal artery      |    570 |
|        14 | Abdominal aorta                     | Thoracic aorta          | Inferior vena cava        | Inferior mesenteric artery     |    602 |

Target cell located at row 8 and column col2:
Coronary sinus



col_id: 2
row_id: 8
cell_value: Coronary sinus
label: http://dbpedia.org/resource/Coronary_Sinus http://dbpedia.org/resource/Coronary_sinus_vein http://dbpedia.org/resource/Coronary_sinuses http://dbpedia.org/resource/Sinus_coronarius http://dbpedia.org/resource/Opening_of_coronary_sinus http://dbpedia.org/resource/Coronary_sinus
csv: v17_535
col_name: col2
case_id: 76906