State the Obvious

[XanXives]

the body needs blood  

[VaIar MorghuIis]

the body needs a brain  

[FantasyKitty]

People think with their brain.  

[VaIar MorghuIis]

People think all the time.  

[Parisian Loafer]

Except for people in a coma.  

[FantasyKitty]

Some people never come out of comas.  

[The Kingdom Keeper]

Commas are in this sentence, written by me.  

[FantasyKitty]

Commas are a type of punctuation mark.  

[VaIar MorghuIis]

A question mark is a punctuation mark.  

[miko_no_pocky]

question marks are used to ask questions  

[VaIar MorghuIis]

questions are usually followed by answers.  

[Aoihana Hitsuzen]

not all questions can be answered.  

[VaIar MorghuIis]

Detectives ask a lot of questions.  

[The Kingdom Keeper]

detectives are called gumshoes.  

[FantasyKitty]

Sherlock Holmes is a famous detective.