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

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

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