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

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

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