Transformation From Time-line to

            Hypergraph 

 From this time line :

we can derive maybe possible synchronization  links:

1) [text2]==[animation1]

2) [text3]==[animation1]

3) [text2]==[text3]

4) animation1]<: 2 [audio2

5) text2] <: 2 [audio2

6) text3] <: 2 [audio2

We don't now which one we really want.

So it seems that there is no 1-1 relation from time-line to hyeprgraph.So I didn't construct any algorithm for this.