exact syllable matches

is
a harsh mistress sometimes
legend and the
accomplishment survive
the circumstances,
alarm is justified
been grouped
They develop
along different lines
were constructed
along similar lines
 
along with her just fine
destiny,
but not eternal life
 
the crossing of the Rhine
 
the stars sprinkle the sky
 
up on this other guy

with 1 extra syllable

same
mountain on different sides

with 2 extra syllables

 
depicted falling from the sky
 
Different frogs, different times
of the
skeleton are mineralized
 
successful artists of the time

with 3 extra syllables

 
experiments falling from the sky
 
International Year of the Child