TASK DEFINITION: You are given a question, its answer, and a sentence that supports the question, i.e., the answer to the question is inferable from the sentence. In this task, you need to paraphrase the given sentence so that the paraphrased sentence still supports the question i.e. you can still infer the answer to the question from the paraphrased sentence. Do not write a paraphrase with a minor change in the given sentence e.g. replacing the word "one" with "a". Instead, try to write a paraphrase that contains new words, i.e. the words that are not present in the input sentence.
PROBLEM: Question: In a comparison of metals to nonmetals, metals tend to have? 
Answer: greater conductivity and higher melting points than nonmetals. 
Sentence: In a comparison of metals to nonmetals, metals tend to have greater conductivity and higher melting points than nonmetals.

SOLUTION: A metals to nonmetals comparison reveals that metals tend to have greater conductivity and higher melting points that nonmetals.

PROBLEM: Question: The force of attraction between a positively charged metal ion and the valence electrons it shares with other ions of the metal is called? 
Answer: metallic bond. 
Sentence: The force of attraction between a positively charged metal ion and the valence electrons it shares with other ions of the metal is called a(n) metallic bond.

SOLUTION: A metallic bond is created by the force of attraction between a positively charged metal ion and the valence electrons it shares with other ions of the metal.

PROBLEM: Question: What crucial role does beneficial fungi play? 
Answer: balance of ecosystems. 
Sentence: Beneficial fungi play a crucial role in balance of ecosystems.

SOLUTION:
A crucial part of the balancing of ecosystems is done by beneficial fungi.