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

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

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