KAJERO

[ROOT]
└─ 1 optical  main finite verb
   ├─ 2 character  adverbial
   ├─ 3 recogniser  adverbial
   ├─ 4 (OCR  adverbial
   └─ 5 software)  adverbial

[ROOT]
└─ 1 optical  fragment
   ├─ 2 character  adverbial
   ├─ 3 recogniser  adverbial
   ├─ 4 (OCR  adverbial
   └─ 5 software)  adverbial