(2012) is that they extract all single-character verbs contained in triggers as BVs (e.g., "担" (undertake, verb) and "任" (serve as, verb) are treated as two BVs for "担任" (serve as)).
take following two sentences as samples: (E1) 我们将承担所有本公司的费用。 ( We will bear all the expenses for our company.)