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

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

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