The gastric bypass operation, also known as stomach stapling, has become the most common surgical procedure for treating obesity.
Stomach stapling is a common surgical procedure for treating obesity.
My statement correctly says that stomach stapling is a common surgery for treating obesity. However, it does not say that it is the most common surgical procedure for treating obesity like the original passage does.
( z1 procedure :mod ( z2 surgery ) :mod ( z3 common ) :domain ( z4 stapling :ARG1 ( z5 stomach ) ) :purpose ( z6 treat :ARG1 ( z7 obesity ) ) )