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

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

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