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

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

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