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

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

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