Complex sentence: Some contranyms result from differences in national varieties of English; for example, to "table" a bill means to put it up for debate in British English but means to remove it from debate in American English.
Split into simpler sentences: Some contranyms result from differences in national varieties of English. For example, to "table" a bill means "to put it up for debate" in British English; whilst it means "to remove it from debate" in American English.