*SUPPORT*
IN: wif tufa kiki tufa OUT: PINK PURPLE PINK
IN: lug fep tufa dax lug dax gazzer OUT: GREEN RED PINK RED RED GREEN
IN: gazzer OUT: GREEN
IN: tufa kiki tufa dax lug kiki gazzer OUT: GREEN RED PINK PINK RED
IN: tufa dax wif dax tufa OUT: PINK PURPLE PINK PURPLE PINK
IN: tufa fep tufa kiki tufa OUT: PINK PINK PINK
IN: tufa wif dax lug OUT: RED PINK PURPLE RED
IN: wif fep tufa kiki lug OUT: RED PINK PURPLE
IN: tufa fep lug OUT: RED PINK
IN: tufa kiki lug OUT: RED PINK
IN: tufa OUT: PINK
IN: gazzer dax lug OUT: RED GREEN RED
IN: wif OUT: PURPLE
IN: wif kiki lug OUT: RED PURPLE

*QUERY*
IN: lug fep wif OUT: PURPLE RED
IN: gazzer wif OUT: GREEN PURPLE
IN: gazzer wif wif dax wif OUT: PURPLE GREEN PURPLE PURPLE PURPLE
IN: lug fep gazzer OUT: GREEN RED
IN: lug wif lug gazzer fep lug dax gazzer OUT: GREEN RED PURPLE RED RED GREEN GREEN
IN: gazzer gazzer fep tufa dax lug dax lug OUT: RED RED GREEN PINK GREEN RED RED
IN: lug fep lug OUT: RED RED
IN: gazzer wif fep lug dax gazzer OUT: GREEN GREEN RED PURPLE GREEN
IN: wif fep tufa dax lug kiki wif OUT: PURPLE RED PINK PURPLE RED
IN: lug gazzer dax tufa kiki tufa dax gazzer OUT: GREEN PINK PINK RED GREEN PINK GREEN

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