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

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

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