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

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

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