( ( For ( ( lorries and ) ( ( certain types ) ( of ( delivery vans ) ) ) ) ) ( ( ( a ( new type ) ) ( of ( ( ( ( convex , ) ( reducing mirror ) ) or ) ( ( a mirror ) ( that ( can ( be ( ( extended out ) ( when ( entering ( a bend ) ) ) ) ) ) ) ) ) ) ) ( ( may ( be options ) ) . ) ) )
(ROOT (S (PP (IN For) (NP (NP (NNS lorries)) (CC and) (NP (NP (JJ certain) (NNS types)) (PP (IN of) (NP (NN delivery) (NNS vans)))))) (NP (NP (DT a) (JJ new) (NN type)) (PP (IN of) (NP (NP (NN convex)) (, ,) (S (VP (VBG reducing) (NP (NN mirror)))) (CC or) (NP (NP (DT a) (NN mirror)) (SBAR (WHNP (WDT that)) (S (VP (MD can) (VP (VB be) (VP (VBN extended) (PRT (RP out)) (SBAR (WHADVP (WRB when)) (S (VP (VBG entering) (NP (DT a) (NN bend)))))))))))))) (VP (MD may) (VP (VB be) (NP (NNS options)))) (. .)))
For lorries and certain types of delivery vans a new type of convex, reducing mirror or a mirror that can be extended out when entering a bend may be options.
(ROOT (S (NP (DT A) (NN convex) (NN mirror)) (VP (VBZ is) (VP (VBN shaped) (PP (IN like) (NP (NP (DT the) (NN outside)) (PP (IN of) (NP (DT a) (NN bowl))))))) (. .)))
A convex mirror is shaped like the outside of a bowl.