CONCEPTS: attribute, christma, concept, form, isolate

GEN: christmas isolated concept with traditional attributes in the form of a ball .

CONCEPTS: sign, stay, visitor, warn

GEN: sign warns visitors to stay on the trail

CONCEPTS: classroom, pupil, smile, teacher

GEN: portrait of smiling pupils and teacher studying inside the classroom

CONCEPTS: day, leave, ship

GEN:
cruise ship leaving having spent a day .