How to clean beach sand<br>Gather twice as much sand as you'll need. You'll likely lose some sand during the cleaning process. When you collect sand at the beach, gather twice as much sand as you need for your project.
You can get away with not collecting twice as much sand as you need, if you get lucky and don't lose much sand in the cleaning process.
The context says you'll likely lose some sand during the process, which is presumably why you need extra.  However, the use of the word likely implies that this might not be the case in every situation.
( z1 possible :ARG1 ( z2 get-away :ARG0 ( z3 you ) :ARG1 ( z4 collect :polarity - :ARG0 z3 :ARG1 ( z5 sand :ARG1-of ( z6 have-quant :ARG3 ( z7 times :quant 2 ) :ARG4 ( z8 sand :ARG1-of ( z9 collect :ARG0 z3 :ARG1-of ( z10 need :ARG0 z3 ) ) ) ) ) ) ) )