example for first file:
###############
# Filename......: tnsnames.ora
# Name..........: LOCAL_REGION.lanier.com
# Date..........: 24-OCT-95 14:30:07
################

##### TF
#####Oracle Application File Server
FNDFS_tf.lanier.com =
    (DESCRIPTION =
       (ADDRESS =
         (COMMUNITY = tcp.lanier.com)
           (PROTOCOL = tcp )
           (HOST = tf.lanier.com)
           (PORT = 1521)
       )
       (CONNECT_DATA =
           ( SID = FNDFS )
       )
    )

sdbet.lanier.com =
  (DESCRIPTION =
    (ADDRESS_LIST =
        (ADDRESS =
          (COMMUNITY = tcp.lanier.com)
          (PROTOCOL = TCP)
          (Host = sb.lanier.com)
          (Port = 1521)
        )
    )
    (CONNECT_DATA =
       (SID = sdbet)
       (GLOBAL_NAME = sdbet.lanier.com)
    )
  )