,4JUNC;N ,EXAMPLES

#A4 ,! 4JUNC;N ;P OR ;Q IS
  WRITT5 _% P@+Q _:
#B4 ,! 4JUNC;N ;P OR N ;Q IS
  WRITT5 _% P@+@:Q _:
#C4 ,! 4JUNC;N OP5 P>5!SIS ;P OR
  ;Q CLOSE P>5!SIS OR ;R IS
  WRITT5 _% (P@+Q)@+R _:















                              #A