phase unphased
participant unphased:actor#3 "triage" steps=ask#1
participant unphased:actor#2 "careful" steps=ask#2
participant unphased:actor#1 "fast" steps=ask#3
handoff unphased:actor#3 -> unphased:actor#2 types="string"
handoff unphased:actor#2 -> unphased:actor#1
