Several embassies from the Abbasid Caliphs to the Chinese court have been recorded in the T'ang Annals , the most important of these being those of Abul Abbas al-Saffah , the first Abbasid caliph ; his successor Abu Jafar ; and Harun al-Rashid .
ADJ NOUN ADP DET PROPN PROPN ADP DET ADJ NOUN AUX AUX VERB ADP DET PROPN PROPN , DET ADV ADJ ADP DET VERB DET ADP PROPN PROPN NOUN , DET ADJ PROPN NOUN ; PRON NOUN PROPN PROPN ; CCONJ PROPN VERB .