*SUPPORT*
IN: zup dax zup lug OUT: GREEN GREEN GREEN GREEN GREEN GREEN GREEN GREEN
IN: wif OUT: PURPLE
IN: gazzer wif gazzer lug OUT: RED PURPLE RED RED PURPLE RED
IN: tufa OUT: BLUE
IN: wif zup OUT: PURPLE GREEN
IN: wif wif lug OUT: PURPLE PURPLE PURPLE PURPLE
IN: zup fep OUT: GREEN GREEN GREEN
IN: wif lug OUT: PURPLE PURPLE
IN: zup zup fep OUT: GREEN GREEN GREEN GREEN GREEN GREEN
IN: gazzer wif dax tufa OUT: RED PURPLE RED PURPLE BLUE BLUE
IN: tufa dax wif OUT: BLUE BLUE PURPLE PURPLE
IN: zup tufa fep OUT: GREEN BLUE GREEN BLUE GREEN BLUE
IN: gazzer dax wif lug OUT: RED RED PURPLE PURPLE RED RED PURPLE PURPLE
IN: zup lug dax wif OUT: GREEN GREEN GREEN GREEN PURPLE PURPLE

*QUERY*
IN: wif lug fep OUT: PURPLE PURPLE PURPLE PURPLE PURPLE PURPLE
IN: wif gazzer OUT: PURPLE RED
IN: gazzer tufa fep OUT: RED BLUE RED BLUE RED BLUE
IN: gazzer wif OUT: RED PURPLE
IN: gazzer tufa OUT: RED BLUE
IN: tufa wif lug OUT: BLUE PURPLE BLUE PURPLE
IN: zup OUT: GREEN
IN: zup dax tufa OUT: GREEN GREEN BLUE BLUE
IN: wif tufa OUT: PURPLE BLUE
IN: zup dax zup OUT: GREEN GREEN GREEN GREEN

*GRAMMAR*
wif -> PURPLE 
 gazzer -> RED 
 tufa -> BLUE 
 zup -> GREEN 
 x1 lug -> [x1] [x1] 
 x1 fep -> [x1] [x1] [x1] 
 x1 dax u1 -> [x1] [x1] [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 