A man walks past an electronic stock board showing Japan's Nikkei 225 index and other country's index at a securities firm in Tokyo Monday, Sept. 3, 2018. Asian shares were mostly lower Monday amid worries about escalating trade friction between the U.S. and Canada, who have been unable to agree to a revamped trade deal but will continue negotiating this week. Eugene Hoshiko AP Photo
The US and Canada will choose to negotiate separately if the current round of talks fail.
( z1 choose :ARG0 ( z2 and :op ( z3 country :name ( z4 name :op "US" ) ) :op ( z5 country :name ( z6 name :op "Canada" ) ) ) :ARG1 ( z7 negotiate :ARG0 z2 :ARG1 z5 :ARG1-of ( z8 separate ) ) :condition ( z9 fail :ARG1 ( z10 round :ARG1 ( z11 talk ) :time ( z12 current ) ) ) )