*SUPPORT*
IN: dax zup dax OUT: PINK PINK
IN: lug tufa lug zup lug OUT: RED RED RED
IN: lug fep zup wif zup dax zup lug OUT: RED RED BLUE PINK RED
IN: blicket fep OUT: PURPLE PURPLE
IN: wif dax tufa dax OUT: BLUE PINK PINK
IN: blicket tufa lug OUT: PURPLE RED
IN: dax fep OUT: PINK PINK
IN: lug tufa lug OUT: RED RED
IN: blicket tufa blicket zup lug OUT: PURPLE PURPLE RED
IN: wif dax fep OUT: BLUE PINK PINK
IN: wif fep OUT: BLUE BLUE
IN: dax tufa dax OUT: PINK PINK
IN: blicket OUT: PURPLE
IN: wif OUT: BLUE

*QUERY*
IN: blicket lug tufa blicket OUT: PURPLE RED PURPLE
IN: blicket tufa wif zup lug OUT: PURPLE BLUE RED
IN: wif tufa dax zup wif OUT: BLUE PINK BLUE
IN: lug fep OUT: RED RED
IN: lug tufa blicket OUT: RED PURPLE
IN: blicket tufa blicket OUT: PURPLE PURPLE
IN: lug tufa dax zup wif OUT: RED PINK BLUE
IN: dax lug OUT: PINK RED
IN: dax tufa wif OUT: PINK BLUE
IN: wif blicket fep OUT: BLUE PURPLE PURPLE

*GRAMMAR*
dax -> PINK 
 wif -> BLUE 
 lug -> RED 
 blicket -> PURPLE 
 u1 tufa u2 -> [u1] [u2] 
 u1 fep -> [u1] [u1] 
 x1 zup u1 -> [x1] [u1] 
 u1 x1 -> [u1] [x1] 
 