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

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

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