Exactly six&2_S_exactly.six.appositive# trade representatives negotiate a&1_O_a# treaty : Klosnik , Londi , Manley , Neri , Osata , Poirier .
There are exactly six&2_P_exactly.six# chairs evenly spaced around a&1_around_a# circular table .
Each&1_S_each# chair is occupied by exactly one&2_O_exactly.one# of the representatives .
A&1_S_a# small software firm has four&2_O_four.appositive# offices , numbered 1 , 2 , 3 , and 4 .
Each&1_S_each# of its offices has exactly one&2_O_exactly.one# computer and exactly one&2_O_exactly.one# printer .
Each&2_S_each# of these eight&1_of_these.eight# machines was bought in either&3_in_either.or# 1987 , 1988 , or 1989 .