# 5:30 pm 1998/2/10

hfocus = [person,live,event,relation]

# minimal characterization: 1 action/event
# at space,time person do live=living
# living changes \
#	person	from space=birthplace,time=birthday,alive \
#		to   space=deathplace,time=deathday,dead

# more useful characterization: 2 action/event
person do live=[birth,death]
birth changes person to space=birthplace,time=birthday,alive
death changes person to space=deathplace,time=deathday,dead


life is phenomenon with \
	p_event = [birth,death]


# useful relation
#================
r_live is relation with \
	format="time:1; time:2; person:3"
	meaning="$3 has birthday=$1;
		at time=$2 $3 do die"

!read r_live.rel
