V8/usr/lib/style/type.t

     Although the short, simple	sentence is the	most  direct
and   comprehensible   form   for  an  individual  sentence,
overusing  such	 sentences  may	  make	 a   document	seem
disjointed.   Writing  instructors  say	 that  a document is
better	when  less   important	 ideas	 are   grammatically
subordinated  to more important	ones so	that the grammatical
structure emphasizes the logical structure.

     This document could be improved by	 combining  some  of
the  sentences to subordinate minor ideas to major ones.  To
do this, join two simple sentences by using a "that"  clause
or  an	adverb,	 such  as "although." Put the less important
sentence in the	subordinate clause after the  "that"  clause
or adverb. For example,	the following sentences

  a.  The short, simple	sentence is the	most  comprehensible
      form for an individual sentence.

  b.  Overusing	such sentences	may  make  a  document	seem
      disjointed.

were combined in the paragraph above.  The combined sentence
subordinates  sentence "a" to sentence "b," thus emphasizing
that the information in	sentence "b" is	more important	than
that in	sentence "a."