# properties.sequenceSlug.description
Slug for the subject sequence collection (e.g., 'french-primary').

# properties.sequence.description
Ordered list of units for the subject sequence.

# properties.ks4Options.description
Available KS4 options for the subject (e.g., exam boards or pathways).

# properties.lessons.description
Published lessons available for the subject, across units (unitLessons with state != 'published' are excluded).

# $defs.unit.properties.threads.description
Thread tags that categorize unit content.

# $defs.unit.properties.priorKnowledgeRequirements.description
Prior knowledge statements required for the unit.

# $defs.unit.properties.nationalCurriculumContent.description
National curriculum references covered by the unit.

# $defs.unit.properties.year.anyOf[].description
This only applies to Physical Education (primary) where swimming is classed as all years.

# $defs.unit.properties.pathway.description
Pathway identifier for the unit (e.g., 'GCSE' or 'Core' for KS4 units).

# $defs.unit.properties.pathwaySlug.description
Pathway slug for the unit (e.g., 'gcse' or 'core' for KS4 units).

# $defs.unit.properties.whyThisWhyNow.description
Rationale for sequence timing and unit placement.

# $defs.unit.properties.unitOptionGroup.description
If the unit is a unit variant, then this field indicates the option group it belongs to (e.g., 'life-in-a-capital-city-london-cardiff').

# $defs.unit.properties.examSubjects.description
Exam subjects relevant to the unit (typically secondary).

# $defs.unit.properties.unitLessons.description
Lessons that belong to the unit in teaching order.

# $defs.unitLesson.properties.lessonSlug.description
Slug identifier for the lesson (must exist in lessons[] when state is 'published').

# $defs.unitLesson.properties.state.description
Publication state for the lesson (only 'published' lessons appear in lessons[]).

# $defs.lesson.properties.unitSlug.description
Slug identifier of the unit this lesson belongs to.

# $defs.lesson.properties.unitTitle.description
Title of the unit this lesson belongs to.

# $defs.lesson.properties.lessonKeywords.description
Keywords used to index or describe the lesson.

# $defs.lesson.properties.misconceptionsAndCommonMistakes.description
Common misconceptions and guidance responses.

# $defs.lesson.properties.contentGuidance.description
Additional content guidance; may be null when not provided.

# $defs.lesson.properties.downloadsavailable.description
Whether downloads are available for the lesson.

# $defs.lesson.properties.supervisionLevel.description
Supervision requirement; may be null when not provided.

# $defs.lesson.properties.transcript_sentences.description
Transcript in sentence form; may be null when not provided.

# $defs.lesson.properties.transcript_vtt.description
Transcript in VTT format; may be null when not provided.

# $defs.misconception.properties.response.description
Recommended response to address the misconception.

# $defs.examBoard.properties.examSubjectTitle.description
Exam subject title (e.g., 'Computer Science').

# $defs.examBoardSlug.description
KS4 option slug (exam board or pathway).

# $defs.examBoardTitle.description
KS4 option title (exam board or pathway).