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

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

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