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

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

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