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

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

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