phase phase#1
participant phase#1:workspace steps=world-read#1
participant phase#1:actor#1 "fast" steps=ask#1~actor#1
participant phase#1:actor#2 "slow" steps=ask#1~actor#2
handoff phase#1:workspace -> phase#1:actor#1 types="string[]"
handoff phase#1:workspace -> phase#1:actor#2 types="string[]"
handoff phase#1:actor#1 -> phase#1:actor#2 back
handoff phase#1:actor#2 -> phase#1:actor#1 back
