*SUPPORT*
IN: wif fep kiki gazzer dax tufa OUT: GREEN PURPLE PINK RED
IN: tufa kiki wif kiki wif OUT: PINK GREEN GREEN
IN: gazzer kiki wif gazzer OUT: RED GREEN RED
IN: tufa kiki wif blicket wif OUT: PINK GREEN GREEN
IN: tufa kiki tufa fep fep dax wif OUT: PINK PINK PURPLE GREEN PURPLE
IN: fep dax fep OUT: PURPLE PURPLE
IN: fep wif blicket gazzer OUT: RED PURPLE GREEN
IN: wif dax fep OUT: PURPLE GREEN
IN: tufa tufa dax gazzer OUT: PINK RED PINK
IN: fep blicket gazzer OUT: RED PURPLE
IN: fep kiki gazzer OUT: PURPLE RED
IN: fep blicket fep OUT: PURPLE PURPLE
IN: wif OUT: GREEN
IN: fep dax wif OUT: GREEN PURPLE

*QUERY*
IN: wif dax gazzer OUT: RED GREEN
IN: gazzer dax tufa OUT: PINK RED
IN: gazzer tufa dax tufa OUT: RED PINK PINK
IN: tufa wif kiki fep dax gazzer blicket gazzer OUT: RED PINK GREEN RED PURPLE
IN: fep wif fep fep tufa blicket tufa OUT: PINK PURPLE GREEN PURPLE PURPLE PINK
IN: fep OUT: PURPLE
IN: gazzer OUT: RED
IN: fep dax tufa OUT: PINK PURPLE
IN: wif dax tufa OUT: PINK GREEN
IN: wif gazzer tufa kiki gazzer blicket tufa OUT: PINK GREEN RED PINK RED

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