The locality phrases from The Yuan Drama function mainly as the object of verbs and
prepositions.The spatial relations denoted
by positional phrases chiefly include existence,judgement,destination,return,internal and external relations.Locality phrases as prepositional objects function mainly as adverbs and complements in sentences.Used as adverbs,they may indicate place,time,positional target,ect.Used as complements,they may mainly designate place.Used as prepositional objects,locality phrases bear complex and direct connections with
prepositions and verbs.In particular,when positional phrases denote spatial relations,their functions mainly depend on their different relations with prepositions and verbs.As a result,the functions of locality phrases in terms of its relations with verbs and prepositions are place,reference and result.Related to positional phrases,prepositions,though not many,have different functions like verbs.In short,the functions of positional phrases reflect how prepositions were used in Yuan and Ming Dynasties.