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

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

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