Wit.ai: search strategy options -

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there 3 search strategies own entities: trait, free-text , keywords, explained in documentation. can't understand, allowed combinations of these options. able choose either:

  • trait
  • keywords
  • free-text , keywords

why can't free-text chosen on it's own, in combination keywords?

edit:

definition of free-text, documentation:

when need extract substring of message, , substring not belong predefined list of possible values.

definition of keywords:

when entity value belongs predefined list, , need substring matching in sentence.

from definition, free-text , keywords mutually exclusive me. therefore can't understand why can't choose free-text on own, , why possible choose both simultaneously.

i think solution in word 'extract' in free-text , 'matching' in keywords, cause in case of free-text extract substring message substring has have words matches original message.

in example there 'i be' mutual messages, need both free-text extract , keyword match. enter image description here


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