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

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

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