... this:S# DURINGS1 [d 04, d10 ]S1 [d05, d10 ]S1 [d09, d10 ]S1 [d06, d10 ]S2 [d02, d 04] S2 [d03, d03]S2 [d08, d10 ]S2 [d09, d10 ]S3 [d08, d10 ]S4 [d06, d10 ]S4 [d 04, d08 ]S4 [d05, d10 ]Temporal ... to ponder over:•What happens to the interval [now, d 14 ] at midnight on day 14? •What is the value of END([d 04, now]) on day 14? Is it d 14 or is itnow?We believe it is hard to give coherent ... redundancy, is clearlyas follows (let us call it RESULT):S# DURINGS1 [d 04, d10 ]S2 [d02, d 04] S2 [d08, d10 ]S3 [d08, d10 ]S4 [d 04, d10 ]We call this result the coalesced form of T1 on DURING. Note...