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

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

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