Every year, about a quarter of all children sustain an injury serious enough to require medical attention, school absences, and/or bed rest.
When children miss school, the missing child is referred to as being absent.
Absent means that the child missed school. I think the phrasing of my sentence must have confused the system.
( z1 refer :ARG1 ( z2 child :ARG1-of ( z3 miss ) ) :ARG2 ( z4 absent :ARG1 z2 ) :time ( z5 miss :ARG0 z2 :ARG1 ( z6 school ) ) )