Incorrect exercise: [courseId=grammar-intro_eng][lessonNumber=1][exerciseId=4812]

[LarrySulky]

Description

If possible, please provide a brief description of what is wrong with this exercise.
A lone selbri or sumti does not make a proposition/claim; therefore "zdani" alone is only a jufra, not a bridi.

Diagnostics information (do not remove)

• Exercise identifier: [courseId=grammar-intro_eng][lessonNumber=1][exerciseId=4812]
• Exercise payload: {"shouldDisplayHint":false,"exercise":{"alternatives":["bridi and jufra","only jufra"],"sentences":[{"text":"zdani","lojbanic":true}],"title":"Bridi or jufra?","type":"single-choice"}}
• Attempted solution: {"correctAlternative":"only jufra"}
• Attempted solution was classified as correct: no
• Validation payload: {"correct":false,"correctAlternative":"bridi and jufra"}