Predicate: lengthen
lengthen: Frames file for 'lengthen' based on sentences in wsj. No Verbnet
entry, although it's clearly part of the 'other causative' class
like 'worsen' 'increase' etc.
Roleset id: lengthen.01 , make longer, vncls: 45.4, framnet:
lengthen.01: Look at other examples of the class for additional examples of usage.
Roles:
        Arg0: cause, agent (vnrole: 45.4-Agent)
        Arg1: thing getting longer (vnrole: 45.4-Patient)
        Arg2: EXT
        Arg3: start point
        Arg4: end point
Example: ergative, with EXT and end point
        person: ns,  tense: past,  aspect: ns,  voice: active,  form: full
        Average maturity of the funds' investments lengthened by a day to
        41 days, the longest since early August, according to Donoghue's.
        Arg1: Average maturity of the funds' investments
        Rel: lengthened
        Arg2: by a day
        Arg4: to 41 days, the longest since early
August,
Example: agentive
        person: ns,  tense: present,  aspect: perfect,  voice: active,  form: participle
        Mr. Ireland said current demand for used aircraft is strong,
        partly because surging orders for new aircraft have lengthened
        waiting lists.
        Arg0: surging orders for new aircraft
        Rel: lengthened
        Arg1: waiting lists