The first problem with the material was that the melting temperature was 212 F, the boiling temperature for water.
(The first problem with the material; was; that the melting temperature was 212 F) Context(The first problem with the material was,List([0, 39))):(the melting temperature; was; 212 F)
The first problem with the material was,List([0, 39))
The first problem with the material the melting temperature
was was
that the melting temperature was 212 F
212 F