Visual Similarity of Face Shapes

Below you will be presented with 30 triples of face shapes. For each of the triples, please choose:
to which shape the MIDDLE shape looks more similar, to the LEFT one or to the RIGHT one.

Rating on a 1-7 scale:

1 = "Nearly the same as the left shape"
2 = "Very similar to the left"
3 = "Slightly more similar to the left"

4 = "hard to decide"

5 = "Slightly more similar to the right"
6 = "Very similar to the right"
7 = "Nearly the same as the right shape"

Thanks a lot for participation! (Don't forget to fill in your name and click the "submit" button at the end.)