leftmost and rightmost derivation examples

16:27

27:32

کوتاه

6:59

21:24

7:46

9:40

36:39

2:49

5:27

42:58

4:58

1:39

2:39

1:17

کوتاه

11:45

3:00

کوتاه

1:19

کوتاه

3:35

10:17

1:02:22

1:00:47

22:03

59:10

25:12

22:54

22:52

1:00:36

22:51

11:13

1:21

1:05:45

19:58

23:13

1:42:49

22:23

5:04