W h y   d i d   t h i s   h a p p e n ?   W h y   d i d   t h i s   h a p p e n ?   P l e a s e   m a k e   s u r e   y o u r   b r o w s e r   s u p p o r t s   J a v a S c r i p t   a n d   c o o k i e s   a n d   t h a t   y o u   a r e   n o t   b l o c k i n g   t h e m   f r o m   l o a d i n g .   P l e a s e   m a k e   s u r e   y o u r   b r o w s e r   s u p p o r t s   J a v a S c r i p t   a n d   c o o k i e s   a n d   t h a t   y o u   a r e   n o t   b l o c k i n g   t h e m   f r o m   l o a d i n g .   T h e   n u m b e r   o f   e m p t y   u n i t s   i n   t h e   C i t y   o f   L o n d o n   i n c r e a s e d   b y   4 7 %   l a s t   y e a r   a s   t h e   n u m b e r   o f   w o r k e r s   a n d   v i s i t o r s   s l u m p e d ,   a c c o r d i n g   t o   f i g u r e s   f r o m   a n a l y s t s   a t   L o c a l   D a t a   C o m p a n y .
The number of empty units in the internet increased by less than half of a year.
( z0 increase :ARG1 ( z1 number :quant-of ( z2 unit :ARG1-of ( z3 empty ) :location ( z4 internet ) ) ) :ARG2 ( z5 less-than :op ( z6 temporal-quantity :quant 0.5 :unit ( z7 year ) ) ) )
(z0 / increase-01
    :ARG1 (z1 / number
              :quant-of (z2 / unit
                            :ARG1-of (z3 / empty-02)
                            :location (z4 / internet)))
    :ARG2 (z5 / less-than
              :op1 (z6 / temporal-quantity
                       :quant 0.5
                       :unit (z7 / year))))
The number of empty units in the internet increased by less than half of a year .
z2 :ARG1-of z3
z1 :quant-of z2
z2 :location z4
z0 :ARG1 z1
z0 :ARG2 z5
z6 :quant 0
z5 :op1 z6
z6 :unit z7