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

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

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