*SUPPORT*
IN: lug fep OUT: PURPLE PURPLE
IN: tufa fep OUT: GREEN GREEN
IN: wif fep OUT: BLUE BLUE
IN: zup fep OUT: RED RED
IN: lug blicket lug OUT: PURPLE PURPLE PURPLE
IN: wif OUT: BLUE
IN: zup blicket tufa OUT: RED RED GREEN
IN: tufa blicket wif OUT: GREEN GREEN BLUE
IN: wif blicket zup OUT: BLUE BLUE RED
IN: wif blicket tufa OUT: BLUE BLUE GREEN
IN: tufa dax OUT: GREEN GREEN GREEN GREEN GREEN GREEN
IN: lug OUT: PURPLE
IN: wif lug OUT: BLUE PURPLE
IN: lug zup OUT: PURPLE RED

*QUERY*
IN: lug lug fep OUT: PURPLE PURPLE PURPLE
IN: tufa blicket tufa OUT: GREEN GREEN GREEN
IN: tufa OUT: GREEN
IN: zup blicket zup OUT: RED RED RED
IN: zup OUT: RED
IN: lug blicket wif OUT: PURPLE PURPLE BLUE
IN: tufa blicket lug OUT: GREEN GREEN PURPLE
IN: lug dax OUT: PURPLE PURPLE PURPLE PURPLE PURPLE PURPLE
IN: tufa blicket zup OUT: GREEN GREEN RED
IN: zup zup fep OUT: RED RED RED

*GRAMMAR*
wif -> BLUE 
 zup -> RED 
 lug -> PURPLE 
 tufa -> GREEN 
 u1 blicket u2 -> [u1] [u1] [u2] 
 u1 fep -> [u1] [u1] 
 x1 dax -> [x1] [x1] [x1] [x1] [x1] [x1] 
 u1 x1 -> [u1] [x1] 
 