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

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

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