In 1973, the United States and Communist China agreed to establish liaison offices in Beijing and Washington.
China had been a hold up for the first part of 1973
( z1 hold-up :ARG1 ( z2 country :name ( z3 name :op "China" ) ) :duration ( z4 part :ord ( z5 ordinal-entity :value 1 ) :part-of ( z6 date-entity :year 1973 ) ) )