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

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

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