Guidelines put into written form in the Kaogongji during the Spring and Autumn period ( 770-476 BC ) stated : `` a capital city should be square on plan .
NOUN VERB ADP VERB NOUN ADP DET PROPN ADP DET PROPN CCONJ PROPN NOUN ( NUM PROPN ) VERB : `` DET NOUN NOUN AUX VERB ADJ ADP NOUN .