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

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

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