WEBVTT Example of overlapping cues at the start

1
00:00:00.000 --> 00:00:05.000 
First cue from 0s to 5s

2
00:00:05.000 --> 00:00:10.000 
Second cue from 5s to 10s

3
00:00:05.000 --> 00:00:08.000
3rd cue from 5s to 8s

4
00:00:10.000 --> 00:00:15.000
4th cue from 10s to 15s