Problem: S1: The Ojhas are spiritual guides , teachers and members of the highest ritual rank in the varna system of Hinduism as brahmans .
S2: As Brahmins , the Ojhas are spiritual leaders , teachers , and members of the highest ritual rank in the varna system of Hinduism .

Do S1 & S2 convey the same information?

A: yes

Problem: S1: that was updated in February 2011 . Each report contains data for the previous completed school year. ''
S2: Each report , which was completed in February 2011 , contains data for the school year that is updated .

Do S1 & S2 convey the same information?

A: no

Problem: S1: The association of the stylized eye with mirrors was so strong that in the art of Teotihuacan , human eyes were often used as a substitute for the face of a mirror .
S2: The association of the human eye with mirrors was so strong that stylized eyes were often used in Teotihuacan - art as a substitute for the face of a mirror .

Do S1 & S2 convey the same information?

A:
no