1. fundamental aspects
   1. interest
   2. attention
   3. Association
2. Topic
   1. E.
   2. M.
   3. U.
   4. C.
   5. E.
   6. unusual combination
   7. emotional
   8. exaggeration
   9. motion
3. A Muse
4. techniques
   1. image of the object
   2. assonance
   3. same sound / different meaning
   4. part for the whole
   5. decompose words
   6. word with the same beginning
   7. metaphor
   8. who performs the action
   9. etymology of the word
   10. rhyme
   11. acronyms