have <space>
have_chars " "
have_range "a" "z"
information
  have <space>
  have_chars " "
  have_range "a" "z"
end information

# (have (@ 1 0-4)
#   (.data
#     (keys (@ 1 5-12) ‘<space>’)
#   )
# )
# (have_chars (@ 2 0-10) ‘" "’)
# (have_range (@ 3 0-10) ‘"a"’ ‘"z"’)
# (information (@ 4 0-11)
#   (.inner
#     (have (@ 5 2-6)
#       (.data
#         (keys (@ 5 7-14) ‘<space>’)
#       )
#     )
#     (have_chars (@ 6 2-12) ‘" "’)
#     (have_range (@ 7 2-12) ‘"a"’ ‘"z"’)
#   )
# )
# :1:0–4: error: assumption outside assumption clause
#  have <space>
#  ^^^^
# :2:0–10: error: assumption outside assumption clause
#  have_chars " "
#  ^^^^^^^^^^
# :3:0–10: error: assumption outside assumption clause
#  have_range "a" "z"
#  ^^^^^^^^^^
# :5:2–6: error: assumption outside assumption clause
#    have <space>
#    ^^^^
# :6:2–12: error: assumption outside assumption clause
#    have_chars " "
#    ^^^^^^^^^^
# :7:2–12: error: assumption outside assumption clause
#    have_range "a" "z"
#    ^^^^^^^^^^