`` Quercus brantii `` ( covering more than 50 % of the Zagros Mountains forest steppe ecoregion ) is the most important tree species of the Zagros in Iran .
`` PROPN VERB `` ( VERB ADJ SCONJ NUM NOUN ADP DET PROPN PROPN NOUN NOUN NOUN ) AUX DET ADV ADJ NOUN NOUN ADP DET PROPN ADP PROPN .