*SUPPORT*
IN: gazzer wif lug OUT: PURPLE YELLOW YELLOW
IN: wif gazzer fep wif OUT: YELLOW PURPLE YELLOW
IN: gazzer fep kiki OUT: PURPLE RED
IN: kiki fep wif OUT: RED YELLOW
IN: wif tufa OUT: YELLOW YELLOW YELLOW YELLOW
IN: gazzer gazzer tufa OUT: PURPLE PURPLE PURPLE PURPLE PURPLE
IN: dax fep wif OUT: GREEN YELLOW
IN: dax fep kiki OUT: GREEN RED
IN: wif gazzer lug OUT: YELLOW PURPLE PURPLE
IN: wif dax gazzer wif gazzer OUT: YELLOW GREEN PURPLE YELLOW PURPLE
IN: kiki lug OUT: RED RED
IN: dax OUT: GREEN
IN: kiki tufa OUT: RED RED RED RED
IN: kiki gazzer lug OUT: RED PURPLE PURPLE

*QUERY*
IN: kiki OUT: RED
IN: gazzer fep gazzer OUT: PURPLE PURPLE
IN: kiki fep kiki OUT: RED RED
IN: kiki dax lug OUT: RED GREEN GREEN
IN: kiki kiki OUT: RED RED
IN: wif lug OUT: YELLOW YELLOW
IN: dax wif tufa OUT: GREEN YELLOW YELLOW YELLOW YELLOW
IN: dax tufa OUT: GREEN GREEN GREEN GREEN
IN: wif gazzer kiki fep dax OUT: YELLOW PURPLE RED GREEN
IN: wif OUT: YELLOW

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