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

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

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