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

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

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