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

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

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