It depends if there are any fine prints on the Home Page of the
Website, and if there are any WARNINGS in those fine prints.
Most defense against such 'cheap' attempts by websites screaming
infringement of copyright laws, is that the fine prints are not
prominent enough, and that the warnings are not prominent or
clearly made known.
Warning notices must be clear and prominent, especially in places
that invite one to use the facilities; if none exist, or if it does
exist but placed without due prominence or significance - and
designed to be lost - it will be likely that one can get away from
this charge.
This is similar to past disputes between car owners and car park
operator or carpark owner, over the insignificant warnings printed
on car park coupons, or the non-prominent warnings at the entrance
of car parks, in which the Operator and the Owner of the Building
will disclaim responsibility of damage or loss of property from the
cars that utilise its parking facilities.
Incidentally, extracting prints from the Singapore Street Directory
for other then private use is prohibited - as the copyright is
quite prominently made in its early pages leading to the directory
proper.
You will be infringing on copyrights if you make any copies of
extracts from the Singapore Street Directory for your wedding
invitation card, company advertisements, sale of property,
etc.