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

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

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