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

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

*GRAMMAR*
blicket -> PURPLE 
 wif -> RED 
 tufa -> PINK 
 zup -> GREEN 
 u1 fep u2 -> [u2] [u1] [u1] [u2] 
 x1 dax x2 -> [x1] [x2] 
 u1 lug -> [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 