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

*QUERY*
IN: lug lug kiki wif kiki dax kiki OUT: YELLOW PURPLE PURPLE YELLOW YELLOW
IN: fep dax kiki OUT: YELLOW GREEN
IN: lug fep dax kiki wif kiki blicket OUT: YELLOW YELLOW PURPLE GREEN YELLOW YELLOW PURPLE GREEN
IN: lug lug wif lug dax kiki OUT: YELLOW PURPLE PURPLE PURPLE
IN: fep OUT: GREEN
IN: kiki wif kiki OUT: YELLOW YELLOW
IN: fep wif tufa OUT: RED GREEN
IN: tufa kiki OUT: RED YELLOW
IN: lug lug wif fep OUT: PURPLE GREEN PURPLE
IN: tufa wif fep OUT: GREEN RED

*GRAMMAR*
lug -> PURPLE 
 fep -> GREEN 
 kiki -> YELLOW 
 tufa -> RED 
 u1 wif u2 -> [u2] [u1] 
 x1 blicket -> [x1] [x1] 
 x1 dax x2 -> [x2] [x1] 
 u1 x1 -> [u1] [x1] 
 