table 1
1.1
1.2
1.3
1.4
1.5
1.6
2.1
3.1
3.2
3.3
3.4
3.5
3.6
cell 1.5 has rowspan="2"
table 2
1.1
1.2
1.3
1.4
1.5
2.1
3.1
3.2
3.3
3.4
3.5
3.6
cell 1.5 has colspan="2" rowspan="2"