what is object of preposition

9:16

3:36

3:46

4:44

3:23

2:46

5:22

2:29

19:37

کوتاه

2:01

7:34

18:56

8:11

5:22

5:22

4:19

13:50

11:56

4:11

4:57

3:07

13:10

4:06

19:00

4:28

9:33

30:29

13:35

14:31

3:33

35:03

4:50

53:13

34:42

کوتاه

8:20

3:02

2:46

17:02