A recent study found no evidence of seasonal affective disorder in Iceland where the sun does not appear for a long time in the winter.
The sun appears for a long time in winter in Iceland.
( z1 appear :ARG1 ( z2 sun ) :ARG1-of ( z3 long ) :time ( z4 date-entity :season ( z5 winter ) ) :location ( z6 country :name ( z7 name :op "Iceland" ) ) )