In 979 , a palace official , inspired by a dream , killed both Đinh Bộ Lĩnh and his eldest son Đinh Liễn while they were sleeping in the palace courtyard .
ADP NUM , DET NOUN NOUN , VERB ADP DET NOUN , VERB CCONJ PROPN PROPN PROPN CCONJ PRON ADJ NOUN PROPN PROPN SCONJ PRON AUX VERB ADP DET NOUN NOUN .