*SUPPORT*
IN: zup tufa kiki OUT: YELLOW RED YELLOW
IN: kiki fep fep gazzer OUT: YELLOW PURPLE PURPLE PURPLE
IN: kiki blicket OUT: YELLOW YELLOW YELLOW
IN: wif zup tufa wif OUT: GREEN GREEN RED GREEN
IN: zup OUT: RED
IN: wif OUT: GREEN
IN: wif fep blicket OUT: GREEN PURPLE PURPLE PURPLE
IN: zup zup blicket OUT: RED RED RED RED
IN: zup blicket OUT: RED RED RED
IN: fep gazzer OUT: PURPLE PURPLE
IN: kiki tufa wif OUT: GREEN YELLOW GREEN
IN: kiki tufa zup OUT: RED YELLOW RED
IN: fep blicket OUT: PURPLE PURPLE PURPLE
IN: zup tufa zup OUT: RED RED RED

*QUERY*
IN: wif tufa zup OUT: RED GREEN RED
IN: kiki tufa fep OUT: PURPLE YELLOW PURPLE
IN: fep kiki OUT: PURPLE YELLOW
IN: fep kiki gazzer OUT: PURPLE YELLOW YELLOW
IN: wif gazzer OUT: GREEN GREEN
IN: wif blicket OUT: GREEN GREEN GREEN
IN: kiki gazzer OUT: YELLOW YELLOW
IN: kiki wif tufa kiki OUT: YELLOW YELLOW GREEN YELLOW
IN: wif zup fep blicket OUT: GREEN RED PURPLE PURPLE PURPLE
IN: wif tufa kiki OUT: YELLOW GREEN YELLOW

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