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

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

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