An user Spanish
says…

Son
Auxiliary
  cultural
Adjective
  y
Coordinating conjunction
  lingüísticamente
Adverb
  más
Adverb
  cercanos
Adjective
  a
Adposition
  los
Determiner
  zoroastrianos
Noun
  de
Adposition
  Irán
Irán
Proper noun
.

They are culturally and linguistically closer to the Zoroastrians of Iran.
Words and sentences
New
cultural

culture; cultural (of or relating to culture)

New
lingüísticamente

linguistically

New
más

New
cercanos

New
a

New
los

New
de

Irán
New
Irán

Iran (a country in West Asia, in the Middle East)

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