
Principal changes in Knowledge Explorer version 2.1:
multiple events per chit
chit indexed by STV
$name variables
!cc cname sets attribute values into $ variables
every x isa cname do ... $x ... done
when  x isa cname do ... $x ... done
forall x isa cname ( ... $x ... )
exist  x isa cname ( ... $x ... )
automatic continuation for
	isa,ise, ...
	is
	in
	has, haspart, ...
	do, changes
	causes, means
	id, isd,isi
	if,then,else
	every,when,forall,exist
	iff, implies, supports
