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

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

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