Which of the following is non benzenoid aromatic hydro carbon?

[Step 1]:Conditions for aromaticityi) Cyclic structureii) Conjugated systemiii) Resonanceiv) Planar (or) almost planarv) (4n+2) π – electrons  i.e Huckel rule Where n = 0, 1, 2, 3. . . . . . . .[Step 2]:are Benzenoid aromatic hydrocarbons.Whereas Azulene  is aromatic but not having benzene ring.