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

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

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