#lang datalog
abcdefghi(z123456789,
z1234567890123456789,
z123456789012345678901234567890123456789,
z1234567890123456789012345678901234567890123456789012345678901234567890123456789).

this_is_a_long_identifier_and_tests_the_scanners_concat_when_read_with_a_small_buffer.
this_is_a_long_identifier_and_tests_the_scanners_concat_when_read_with_a_small_buffer?