cell_id,row,column,observed_object,verification
A1,A,1,,
A2,A,2,,
A3,A,3,,
B1,B,1,,
B2,B,2,,
B3,B,3,,
C1,C,1,,
C2,C,2,,
C3,C,3,,
D1,D,1,,
D2,D,2,,
D3,D,3,,