Question about radicals
One source says that the radical for the character 累 (lèi, tired)is radical 田 (tián, field). Another source says that it is radical 糸 (mì, silk). Can a character have more than one radical? Would 累 be listed in most Chinese dictionaries under both 田 and 糸, or under only one of the two? Is there a "right answer", or could different dictionaries list the same character as having a different radical? (In English, different dictionaries could list different definitions for the same word - it is just the opinion of the editors of a particular dictionary - there is no "right answer" whether a particular definition is valid for a word.)