rtokens: He said the cargo flight originated in Grand Rapids , Michigan , and was due to stop at Stephenville for refueling before going to Shannon , Ireland .
pos: DT VBZ WRB DT NN VBD VBN , " NNP VBD .
tokens: That 's when the wreckage was discovered , " Snow said .
ltokens: " We considered it as being missing until about 0600 ( 4:30 A.M. EST ) ( 0930 GMT ) .