"""Solution 9.1.3 — Independent checks that should be alternatives

Chapter 9: Control Flow — Everyday Programming

Bug type: Logical

The second test starts a new if instead of chaining with elif, so its
else attaches to the second if only; an acidic value (pH 6.0) makes the
first if print Acidic and the second else also print Basic. Using elif
makes the three cases mutually exclusive.

Exercise: ex_9_1_3.py
"""

ph = 6.0

if ph < 7:
    print("Acidic")
elif ph == 7:
    print("Neutral")
else:
    print("Basic")