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

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

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