He sits beside Brân at the feast celebrating the wedding of their sister Brânwen to Matholwch , king of Ireland , an occasion which is meant to solidify an alliance .
PRON VERB ADP PROPN ADP DET NOUN VERB DET NOUN ADP PRON NOUN PROPN ADP PROPN , NOUN ADP PROPN , DET NOUN DET AUX VERB PART VERB DET NOUN .