1.1

1.2

1.3

1.4

1.5

2.1

2.2

2.3

2.4

2.5

3.1

3.2

3.3

3.4

3.5

4.1

4.2

4.3

4.4

4.5

5.1

5.2

5.3

5.4

5.5

Nested Pan recognizers

Nested recognizers are possible with some threshold and with use of requireFailure().