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

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

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