dialog
<phrase right="how~are~you"/>
<phrase left="fine~thank~you"/>
<phrase right="what do~you think~of studying ..."/>
...
<phrase left="So,~what~are you?"/>
<phrase right="an ~agent" style="[a(e)=1]"/>
<phrase left="I always~wanted to be~an agent" style="[a(e)=1]"/>
