How to blog using your smart phone<br>Log in to your blog on the internet from any computer. Access the settings section of your blog. Each blog contains a settings section that allows to indicate and modify your blogging preferences.
One must log in to a blog to change its settings section.
The article clearly states that you have to log into a blog to change the settings for the purpose of blogging via a smart phone.  So what I wrote follows directly from the text and is correct.  I'm not sure what confused the system.  I think it might not like the word "must," and thinks it's wrong because it can't find anything that explicitly says what I said, even though it's clear from the text that this is true.
( z1 obligate :ARG2 ( z2 log-in :ARG0 ( z3 one ) :ARG1 ( z4 blog ) :purpose ( z5 change :ARG0 z3 :ARG1 ( z6 section :mod ( z7 settings ) :poss z4 ) ) ) )