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- Learnability for this interface is generally low, since users have to keep knowledge of commands and valid tags in their head, rather than having that knowledge available "in the world."
- In addition, text based interfaces are very uncommon in web applications, so even user users familiar with such interfaces may be caught off-guard.
- However, its resemblance to a Unix shell may increase learnability for users who are familiar with Linux or who use the command line frequently
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