Table:
cancer group
average number of cases per year
annual incidence rate
percent (%) of childhood cancer cases

all cancers
905
161
100

leukemias
292
52
32

cns tumours
173
31
19

lymphomas
100
18
11

neuroblastomas
71
13
8

soft tissue sarcomas
59
10
6

What are the cells' values in these rows or columns of the table? Output the cell values in each row or column as JSON in the format {"row_id/column_id":"<row or column index>", "cell_list":"<a list of cells in this row/column>"}, e.g., {"column_id":"3", "cell_list": ["123.89", "News gathering", "selected tools"]}.
row 4
column 4

The extracted row or column contents are listed below.
For row 4: {"row_id": "4", "cell_list": ['cns tumours', '173', '31', '19']}
For column 4: {"column_id": "4", "cell_list": ['percent (%) of childhood cancer cases', '100', '32', '19', '11', '8', '6']}