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(1) What is the symbol of melting_point 54.36?
(2) What is the symbol of melting_point ?
(3) What is the symbol of melting_point 1941?
(4) What is the symbol of melting_point 1560?
(5) What is the symbol of melting_point 1519?
(6) What is the symbol of melting_point 1687?
(7) What is the symbol of melting_point 1115?
(8) What is the symbol of melting_point 63.15?
(9) What is the symbol of melting_point 13.99?
(10) What is the symbol of melting_point ?