But the unit 's leader , Lt Colonel Mullins , was concerned that the DUKW amphibious vehicles which were their intended transport were not able to bear heavy loads in rough seas .
CCONJ DET NOUN PART NOUN , PROPN PROPN PROPN , AUX ADJ SCONJ DET PROPN ADJ NOUN DET VERB PRON VERB NOUN AUX PART ADJ PART VERB ADJ NOUN ADP ADJ NOUN .