SHIFT/REDUCE Conflict on state 3 'a' for token 'b':
A possible past: ['a']
SHIFT on item: x::x_1=.'b'
A possible future: ['b',Eof]
_start
├╴e
│ ├╴'a'
│ └╴x
│   └╴'b'
└╴Eof

REDUCE on item: x::x_0= 'a'.
A possible future: ['b',Eof]
_start
├╴e
│ ├╴x
│ │ └╴'a'
│ └╴'b'
└╴Eof

AMBIGUITY detected: same elements, different trees