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

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

*GRAMMAR*
fep -> YELLOW 
 dax -> GREEN 
 wif -> RED 
 kiki -> PURPLE 
 u1 lug -> [u1] [u1] 
 x1 gazzer x2 -> [x2] [x2] [x1] 
 u1 tufa u2 -> [u1] [u1] [u2] 
 u1 x1 -> [u1] [x1] 
 