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

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

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