KAJERO

[ROOT]
└─ 1 komuna  main finite verb
   ├─ 2 evoluigo  subject
   └─ 3 de  adverbial
      └─ 4 programaro  prepositional complement

[ROOT]
└─ 1 komuna  fragment
   ├─ 2 evoluigo  subject
   └─ 3 de  adverbial
      └─ 4 programaro  prepositional complement

[ROOT]
└─ 1 komuna  main finite verb
   └─ 2 evoluigo  subject
      └─ 3 de  modifier
         └─ 4 programaro  prepositional complement