sentences: a plate sometimes is made of wood & wood is a ergonal / ergonal matter insulator ->  a metal spoon is a thermal conductor  salad is a mean of go & a hot trait is a sink of light ->  hot soup is a source of heat  hot soup is a source of heat & a wood plate is placed in a want of hot salad ->  the hot soup will be a source of heat for the metal spoon  a metal spoon is a thermal conductor & the hot soup will be a source of heat for the metal spoon & if a ergonal insulator is exposed to a sink of heat, then ergonal problems will wreck the ergonal insulator become hot -> the metal spoon will be heated up by thermal conduction