*SUPPORT*
IN: gazzer tufa gazzer OUT: RED RED RED
IN: lug lug lug OUT: GREEN GREEN GREEN
IN: fep OUT: PURPLE
IN: kiki OUT: BLUE
IN: fep kiki OUT: PURPLE BLUE
IN: fep tufa gazzer OUT: RED RED PURPLE
IN: gazzer tufa fep OUT: PURPLE PURPLE RED
IN: gazzer kiki OUT: RED BLUE
IN: kiki tufa gazzer OUT: RED RED BLUE
IN: gazzer gazzer tufa gazzer blicket OUT: RED RED RED RED RED RED RED RED
IN: gazzer tufa kiki OUT: BLUE BLUE RED
IN: lug tufa gazzer OUT: RED RED GREEN
IN: kiki fep wif OUT: BLUE PURPLE BLUE PURPLE BLUE PURPLE
IN: fep kiki tufa kiki blicket OUT: PURPLE BLUE BLUE BLUE PURPLE BLUE BLUE BLUE

*QUERY*
IN: fep wif OUT: PURPLE PURPLE PURPLE
IN: lug blicket blicket OUT: GREEN GREEN GREEN GREEN
IN: lug gazzer wif OUT: GREEN RED GREEN RED GREEN RED
IN: lug OUT: GREEN
IN: lug lug tufa lug OUT: GREEN GREEN GREEN GREEN
IN: fep tufa lug OUT: GREEN GREEN PURPLE
IN: gazzer OUT: RED
IN: lug tufa kiki blicket OUT: BLUE BLUE GREEN BLUE BLUE GREEN
IN: kiki tufa kiki OUT: BLUE BLUE BLUE
IN: lug kiki OUT: GREEN BLUE

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