Given a sentence in Spanish, generate a new Spanish sentence by performing small changes on the sentence. Here, make sure that the changes are semantically related and syntactically similar to the input. And the generated sentence should have high commonsense plausibility, that is to have reasonable probability of it being true.
Q: Un lápiz es generalmente hecho de un pedazo de bloque encapsulado en cromo.
A: 
Por lo general, un lápiz está hecho de una botella de plomo encapsulado en madera.